$50

Category: Chemicals/Organosilicon/Silanes

Company: 东莞市鸿联有机硅科技有限公司

Product Description: Pouring Liquid Silicone Rubber AB Glue for Making Candle Molds Silicone Rubber Factory Contact Ms. Chen for Consultation: 13662816580 (WeChat same number)CharacteristicsGood Fluidity: Low viscosity, easy to operate, can be easily poured into molds of various shapes, filling complex details to ensure precise replication of the mold.High Tensile and Tear Strength: Strong pulling force, not easily stretched or torn. During the candle-making process, even after multiple demolding operations, it maintains the integrity of the mold and extends its service life.Low Shrinkage: Low shrinkage after curing, ensuring high dimensional accuracy of the candle mold with minimal deviation from the original model, thus preserving the shape and details of the replicated candle products.High Temperature Resistance: Can withstand high-temperature environments during candle making. It does not deform, soften, or get damaged when candles are melted and poured, ensuring the stability and reliability of the mold.Corrosion Resistance: Good tolerance to candle materials and other chemicals it may come into contact with during the production process. It is not easily corroded, ensuring the performance and quality of the mold.Excellent Operability: Adjustable curing time. The amount of curing agent and curing conditions can be selected according to actual needs, controlling the curing speed of the silicone for convenient operation.Good Demolding Performance: Low adhesion to candle materials. After the candle is formed, it is easy to demold without the candle sticking to the mold, preventing damage to both the candle and the mold. more>

$20

Category: Others

Company: 惠州市佳一美金属表面处理材料有限公司

Product Description: What is Stainless Iron 430F: 430F stainless steel is a grade of steel with enhanced machinability added to 430 steel. It is used for automatic lathes, bolts, nuts, etc. 430LX adds Ti or Nb to 430 steel, reduces carbon content, and improves processing and welding performance. It is used for hot water tanks, hot water supply systems, sanitary ware, household durable goods, bicycle freewheels, etc.Why 430F Struggles with Salt Spray: 430F belongs to the stainless iron series, which is inherently more prone to rusting compared to the 300 series stainless steel materials. Additionally, the F-grade material contains sulfur and has not undergone heat treatment processing, significantly reducing its rust resistance. So, how can we prevent it from rusting? The solution is to use Jiayimei brand stainless iron passivation solution for passivation treatment. This raises the question: what is stainless iron passivation? How should the stainless iron passivation solution be operated? Below, we will introduce the advantages of stainless iron passivation solution and its operational process.430F Passing 48h Salt Spray Test: Upon receiving the customer's requirement for 430F to pass a 48-hour salt spray test, Jiayimei's technical R&D team focused on developing a solution specifically for this material. Ultimately, they helped the customer resolve this issue. JYM-1000-2 is primarily used for various stainless iron F-grade materials. After treatment, the workpiece's dimensions and color remain unchanged, and rust resistance can be improved by 6 to 10 times.Standard Process Flow:Degreasing — Rinsing — Passivation — Rinsing — Stabilization — Rinsing — Pure Water Soak — Drying and PackagingThe above process can be adjusted as needed.Precautions:Containers for passivation can generally use plastic baskets, plastic tanks, or stainless steel tanks.Passivation temperature is 70°C for 30 minutes; stabilization temperature is 65°C for 15 minutes.The passivation solution does not contain harmful substances and is environmentally friendly.It passes the nationally standardized blue dot test, with no blue dot appearing within 35 seconds.Operators must wear labor protection gear to avoid contact between the solution and skin.For wastewater treatment, neutralize with alkaline lime water or CH2OH until the pH reaches 7 before discharge, ensuring no environmental impact.If you wish to learn more about passivation and rust prevention, please call Jiayimei Company for consultation and discussion. All staff at Jiayimei look forward to your call. more>

$65

Category: Chemicals/Phenols/Hydroquinone

Company: 河南路彩建筑工程有限公司

Product Description: Product Advantages: Aesthetic, durable, short construction period, the entire road surface can be formed in one go (cast-in-place tactile paving can be directly laid on the finished road surface, avoiding the hassle of secondary paving typically caused by traditional tactile paving bricks), significantly reducing road construction costs and material waste. Various colors and styles are available, offering flexible combinations.Product Description: Polymer cast-in-place diamond tactile paving is a continuous tactile paving system made from inorganic high-strength polymer materials combined with specialized molds, constructed on existing road surfaces through cast-in-place methods. It is divided into two types: guidance strips and guidance points. Standard widths include 300mm, 400mm, 500mm, and 600mm, with flexible customization available based on actual needs. It forms a permanent bond with asphalt concrete or cement concrete base layers, offering wear resistance, slip resistance, stain resistance, and synchronous expansion and contraction with asphalt pavement.II. Construction Process and Operating MethodsPolymer cast-in-place diamond tactile paving is a new tactile paving technology that can be constructed on-site on traditional black asphalt concrete and gray cement concrete road surfaces.2.1 Construction ProcessBase layer inspection - Base layer cleaning and treatment - Layout marking - Tape application - Base leveling and mortar spreading - Mold placement - Filling with diamond tactile paving mortar - Leveling and finishing - Curing to specified time - Surface cleaning - Application of sealant for surface sealing - Drying and curing - Acceptance inspection - Opening to traffic - Final acceptance.2.2 Construction Equipment and ToolsThe construction process for diamond tactile paving is relatively simple, requiring only the following equipment and tools: one mixer, one disperser, several tactile paving molds, one material transport vehicle, rolling rollers, specialized serrated rubber screeds and flat rubber screeds, one powerful blower, one generator, brooms, and other general equipment and tools.2.3 Construction PersonnelOne team leader and 5-6 construction workers per group.2.4 Construction Preparation4.1 Review drawings and layout markingCarefully review construction drawings and verify positions on-site one by one. If necessary, mark points and apply tape.4.2 Material inspectionPolymer cast-in-place diamond tactile paving is an on-site constructed ground system involving multiple processes and materials. Before construction, ensure material consistency and compatibility. Emulsion materials should show no significant skinning, clumping, or abnormalities; powder materials should be free of clumps. 2.4.3 Trial mixing and sample preparationDifferent base layers and environments can affect the curing time of polymer diamond tactile paving. Therefore, before formal construction, conduct on-site trials strictly following the mix ratio and methods set for batch operations. Proceed with batch operations only after ensuring no significant defects in curing.2.4.4 Base layer conditions and treatmentThe base layer should be solid and clean. Asphalt concrete surfaces should be free of bleeding, loose dust, delamination, or aggregate loss.For cement concrete surfaces with strength below C25, treat the surface by milling, scabbling, grinding, sandblasting, or roughening (for newly poured concrete) to expose aggregates over a large area. Additionally, apply 1-2 coats of PM-101 penetrating sealant for sealing treatment.Clean, dry asphalt surfaces in good functional condition require no sealing treatment. more>

$880

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: 南京安蒂特防科技有限公司

Product Description: 一、产品介绍便携式移动升降杆装置与同类产品相比，具有升降速度快、抗风能力强、防腐蚀性强、可靠性高、耐久性强、安全稳定、重量轻、闭合高度小，携带方便等特点。升降方式分手动和电动两种，便携式移动升降杆装置可升高高度为20米，闭合高度在2.7米左右，主杆重量15Kg-60Kg。广泛适用于部队、消防、建筑、野外施工、大型文体活动、抗灾救灾等应急的雷电防护。使用升降式避雷针，还能使安装维护航空障碍灯的工作安全方便。使用时将升降桅杆安装于设备顶部或者周边，垂直地将避雷针、摄像设备、天线设备等举升至高空实现客户预定功能的升降设备。也可以通过底部加固三角架来实现，移动式升降，作业时通过打开三角架底盘，做好接地设施，手动或自动升降杆，实成作业。升降桅杆是通过在车顶开孔固定，或者安装在车周边，并通过拖盘及支撑架联合固定。升降杆采用高强度6063铝合金型材或锰镁合金或者不锈钢及玻璃钢，表面进行阳极硬化处理，较高的硬度、膜厚度、耐磨性和抗腐蚀性。二、技术参数项目技术要求升降方式手动桅杆材料铝镁合金升降高度按需管径范围40-140mm抗风等级12级防护等级IP64自身重量≤35kg顶端承载能力≤15kg桅杆材料处理防腐，三防处理配件配备2层6根钢丝绳拉绳，含拉紧装置（拉线盒）耗材地桩钉，地钉，安装抱箍，安装底座避雷针主体材料不锈钢包装木框架箱其他定制承载5-15公斤的障碍灯托盘，托盘与障碍灯之间需配有隔电子进行绝缘处理三、产品特点1、移动升降式避雷针具有接闪直击雷，将雷电流导入大地，起到直击雷防护作用。2、选用高强度铝镁合金型材，强；缸内壁选用高压瓷化处理技能密封联合。3、具有极强的防滚动功用。4、具有自设备功用，移动运送便当。可查看维护针尖部设备，使其得以正常作业。5、抗风才干强，可抗60m/s的风力。6、具有高度防腐、防水、防尘的结构特征，运用寿命长。7、防雷维护半径依照滚球法计算。四、架设要求1、升降杆必须安装在平坦、坚硬的地面或承载基础上，保证承重后不下沉，不倾斜。2、升降杆的装载不允许超过规定重量，装载要作用在杆体轴线上，禁止远离轴线的不对称负载致使升降杆倾斜、弯曲。3、升降杆升起之前必须用拉线将固定管固定在垂直位置，允许倾斜角度不大于0.5°。4、风速超过14m/S时，架设或升降必须有拉线。5、升、降过程单层拉线盒拉线必须在开锁状态。6、升降杆只能垂直使用，禁止水平状态或倒置使用。五、使用维护1、每升降工作一次，特别是风沙天气，应将升降杆避雷针清理干净，检查螺钉等有无松动情况2、停用3个月以上再次使用时，应仔细检查升降杆避雷针的各构件是否联接好，检查密封件是否损坏，并进行手动操作无异常后，再进行升降操作；3、如升降杆避雷针在上升（下降）到位过程上，如限位开关失灵，请手摇下降（上升）30mm左右，再点动下降（上升），如还不能正常可能是限位开关损坏，请更换限位开关。4、本系列升降杆避雷针禁止用户自行拆卸和违章操作，如出现故障应及时通知我公司处理。 more>

$8888

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: 北京阿尔泰科技发展有限公司

Product Description: Brand: Altai TechnologyProduct Introduction:The DAM-3950E is a 16-channel isolated digital input, 8-channel Type C + 8-channel Type A signal relay output module with an RS485 communication interface and standard Modbus RTU protocol.Specifications:Digital InputInput Channels16 single-ended digital inputs (dry contact or wet contact common anode)Digital Input VoltageDry contact: Logic 0: GroundedLogic 1: Open or floatingWet contact: Logic 0: 0~+3V (max)Logic 1: +10V～+30VNote: Floating and wet contact high-level states are the same.Operating ModesDI input, low-to-high latch, high-to-low latch, counter, frequency measurementCounter Function Support32-bitCounter/Frequency Input Range0~400HzOtherSupports DI inversion function, supports signal filtering functionDigital OutputChannels16 signal relays, including 8 Type C relays (normally open + normally closed contacts),8 Type A relays (normally open contacts)Rated Control Capacity (Resistive Load) Note 1Type A relay: 5A 250VAC/30VDCType C relay: NO: 10A 277VAC, 10A 30VDCNC: 5A 250VAC, 5A 30VDCMaximum Allowable Contact Current (Resistive Load)Type A relay: 5AType C relay: NO: 10A, NC: 5AMaximum Switching Voltage (Resistive Load) Note 2Type A relay: 277VAC/30VDCType C relay: NO: 277VAC/30VDC, NC: 250VAC/30VDCMinimum Applicable Load (Resistive Load)100µA 100mV DCRelay Release TimeType A relay: 10ms (max), Type C relay: 5ms (max)Relay Operate TimeType A relay: 10ms (max), Type C relay: 10ms (max)Mechanical LifeType A relay: 5 million operations, Type C relay: 10 million operationsElectrical LifeType A relay: Over 100,000 operations, 5A 250VAC, resistive load, 85°C, 1S on/1S offType C relay: Over 10,000 operations, NO: 5A/NC: 5A 250VAC, resistive load,room temperature, 5S on/5S offOperating ModesDO output, low-to-high delayed output, high-to-low delayed output, pulse outputOtherCommunication InterfaceRS485RS485 Transmission Rate Note 3Maximum 180 times/second (total channels per module, at 115200bps)Maximum 24 times/second (total channels per module, at 9600bps)Maximum 3 times/second (total channels per module, at 1200bps)Baud Rate1200~115200bpsWatchdogSoftware watchdogSupply Voltage+10~30VDCPower ProtectionReverse power protectionPower ConsumptionRated 0.5W @ 24VDCOperating Temperature-10℃～＋70℃Storage Temperature-40℃～＋80℃Contact: 15600362816, 15910369641Official Store: https://art-control.taobao.comQQ: 2853689777 more>

Negotiable

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: 蚌埠利圆电子科技有限公司

Product Description: This RS232 serial port digital-to-analog converter features an 8-channel 8-bit D/A conversion dedicated chip and a precision voltage reference, with a control output voltage accuracy error of no more than 0.01V. By sending a simple visual ASCII command through a computer's serial port (or other microcontrollers, PLCs, or DSPs with serial ports), it is convenient to control the output voltage values set for the 8 digital-to-analog conversion channels. For example, if the computer's serial port outputs the string "C2V2660" to this control board, the board will control channel 2 to output 2.66V; if the computer's serial port outputs the string "C6V3060" to this control board, the board will control channel 6 to output 3.06V. The commands are very simple and require no understanding of complex hardware or timing control. Output voltage range: 0-5V (with 2 channels flexibly configurable for maximum output voltage). Baud rate is 9600, but can be customized according to user requirements. Widely used in various industrial control fields that require voltage control, such as motor speed regulation, voltage-controlled oscillation, servo control, etc.There are three operating modes:1. Single-channel control mode: Send one command via the serial port to control one digital-to-analog conversion channel to output the set voltage value at a time.2. 4-channel control mode: Send one command via the serial port to control four digital-to-analog conversion channels to output their respective set voltage values simultaneously. Used for synchronously setting the output voltages of 4 channels.3. 8-channel control mode: Send one command via the serial port to control eight digital-to-analog conversion channels to output their respective set voltage values simultaneously. Used for synchronously setting the output voltages of 8 channels. more>

Negotiable

Category: Others

Company: 长沙硕博电子科技股份有限公司

Product Description: The electric loader is mainly composed of the frame structure, cabin, working device (bucket, rocker arm, boom, link rod), power system (charger, battery, electric motor), transmission system (reducer, drive shaft), operation control system, hydraulic system, and other components.The electric loader operation control system developed by Changsha Shuobo Electronic Technology Co., Ltd. includes the controller SPC-SFMC-X2424A, display screen SPD-080-Fx, operating handle, steering wheel, accelerator pedal, sensors, and other equipment.The main control device collects operation signals from the operating handle, analog signals such as angle sensors, temperature and pressure of the hydraulic system, digital input signals like operation switches and proximity switches, as well as bus information from the CAN bus such as BMS and motor drivers. After logical computation by the controller, it controls the output to achieve forward and reverse movement of the loader, steering, boom lifting and lowering, bucket unloading and retraction; it also enables functions such as automatic leveling, automatic lifting, power matching, composite actions, and hydraulic distribution. The power system is divided into dual-motor drive and single-motor drive.System functions are as follows:1. Actions such as bucket, rocker arm, boom, and link rod are controlled by proportional valves, ensuring smooth start and stop, minimal impact, and adjustable fine movements;2. The control system features automatic leveling, automatic lifting, and composite actions, reducing the operational intensity for the operator;3. Power matching, composite actions, and hydraulic distribution achieve high efficiency and energy savings;4. Load weight measurement is performed using pressure sensors or weighing sensors, with data computation and display handled by the controller and display screen; dedicated weighing computation and display screens can also be used;5. The display screen shows rich content and includes built-in reverse camera and voice prompt alarm functions;Changsha Shuobo Electronic Technology Co., Ltd. was established in 2007 and is dedicated to providing specialized equipment customers with electronic products such as controllers, display screens, intelligent distributed I/O, operation panels, and complete vehicle electronic control system solutions. more>

$3.50

Category: Chemicals/Plastics & Products/Plastic Crosslinking Agents

Company: 天津一洋五金有限公司

Product Description: Waterproof Metal Flat ConduitModel: LT-11Description:Made of galvanized iron sheet with a PVC-coated surface.Features ultra-waterproofing, high tensile strength, oil resistance, and flame retardancy.Temperature range: -15°C to +105°C.3/8" to 1-1/4" include an integrated grounding copper wire; 1-1/2" to 4" require an additional grounding copper wire to comply with Section 351 of the International Electrotechnical Code.Part NoNominal SizeISO (mm)Nominal SizeUS (inches)I.D. (mm)O.D. (mm)Min. Bend Radius (mm)Length (M/coil)LT-10163/8"12.29 - 12.8017.50- 18.0050.530LT-11201/2"15.80 - 16.3120.80 - 21.3082.530LT-12253/4"20.83 - 21.3426.20 - 26.70108.030LT-13321"26.44 - 27.0832.80 - 33.40165.020LT-14401-1/4"35.05 - 35.8141.40 - 42.20203.020LT-15501-1/2"40.10 - 40.6447.40 - 48.30228.520LT-16632"51.31 - 51.9459.40 - 60.30282.515LT-17752-1/2"62.99 - 63.6372.10 - 73.00374.510LT-18903"77.98 - 78.7487.90 - 88.90444.510LT-191004"101.60 - 102.62113.2 - 114.3609.55Suitable for use with galvanized iron, nickel-plated copper, stainless steel, or zinc alloy fittings. more>

Negotiable

Category: Machinery & Equipment/Electric Heating Equipment/Medium Frequency Power Supplies

Company: 陕西德力能源科技有限公司

Product Description: Shaanxi Deli Energy Technology Co., Ltd., under its subsidiary Fandeli Boiler Plant, has been recognized by the Weinan Municipal Government and the Bureau of Quality and Technical Supervision as a producer of "Weinan Famous Brand Products." Mr. Fan Gaofeng, the legal representative, was elected as an "Outstanding Technological Innovation Talent of Weinan" (the only recipient in Weinan’s boiler industry). The company is the only enterprise in Shaanxi specializing in the production, modification, and customized manufacturing of environmental dust removal equipment for semi-coke boilers. The semi-coke boilers produced by the company were adopted as pilot demonstration projects by the Weinan Environmental Monitoring Station. In 2015, the Municipal Environmental Protection Bureau organized a visit for numerous users in Weinan to observe and learn from these installations. The company has a track record of successful modifications for various types of semi-coke boilers, including hot water heating boilers, bathing boilers, and industrial steam pressure boilers. It also develops and produces customized dust removal equipment tailored to the characteristics of semi-coke boilers. These modifications ensure sufficient output while meeting environmental emission standards and offering energy-saving benefits. Post-modification, the boilers are easy to seal, ignite quickly, and allow for complete combustion of semi-coke. With 30 years of experience in boiler manufacturing, the company is dedicated to the research and development of products with independent intellectual property rights in China. It has been granted 46 national patents and possesses three decades of comprehensive industry chain production experience, offering customized solutions based on client needs. Fandeli Semi-Coke Environmental Protection, Energy-Saving, and Low-Emission Boilers: These boilers support interchangeable use of semi-coke and natural gas with the installation of a burner, leading the way in safe, energy-efficient, and high-performance atmospheric boiler technology. - Energy Efficiency: The exhaust gas temperature when burning semi-coke is only about 60°C, resulting in up to 50% savings in semi-coke consumption compared to traditional boilers. When burning oil or gas, the exhaust temperature is around 80°C, offering up to 30% savings in fuel consumption. - Environmental Protection: Equipped with balanced oxygen-enriched waste heat preheating and combustion-supporting vortex infrared combustion technology. The grate has a long service life, and semi-coke burns thoroughly. The boilers are easy to seal, ignite quickly, and produce no smoke or dust during combustion. No tall chimney is required, as exhaust gases can be directed to a designated location for treatment. 5. Boiler Operation: Boiler operation must be conducted by trained and certified personnel holding a "Special Equipment Operation Certificate." Operators must strictly adhere to operating procedures, eight key systems, and six required records during use. 6. Boiler Inspection: Boilers must undergo an annual periodic inspection. Boilers that have not passed a safety inspection are prohibited from use. Safety valves must be inspected annually, and pressure gauges must be calibrated every six months. Safety accessories that have not been periodically inspected are not permitted for use. 7. It is strictly prohibited to install atmospheric boilers as pressure boilers. The use of boilers lacking the three major safety accessories—water level gauges, safety valves, and pressure gauges—is strictly forbidden. more>

Negotiable

Category: Machinery & Equipment/Electric Heating Equipment/Medium Frequency Power Supplies

Company: 陕西德力能源科技有限公司

Product Description: The Shaanxi Fandeli Boiler's semi-coke boiler retrofit features a simple water circulation system and a rationally designed pressure-bearing structure, ensuring safe operation under proper water quality conditions. The combustion equipment, a quick-installation grate, is manufactured and assembled in the factory, allowing for direct installation on the foundation upon delivery to the site. With its rational and compact structure, low steel consumption, and superior performance, weight, and dimensions compared to domestic boilers of the same capacity, it demonstrates significant advancements. Our company, Shaanxi Weinan Fandeli Boiler Factory, developed the first semi-coke boiler retrofit based on extensive research and experimentation. This innovation not only addresses the challenges of igniting and fully burning semi-coke but also offers high thermal efficiency, low emissions of SO2, NOx, and soot, making it a new generation of energy-saving and environmentally friendly products. The introduction of specialized semi-coke boilers completely resolves the issue of industrial boilers lacking low-cost clean fuels, and this technology has applied for multiple national patents. In recent years, amid the severe challenges of air pollution control, our company has developed a fully intelligent series of boilers suitable for semi-coke briquettes and semi-coke pellets, based on the combustion characteristics of semi-coke. Tests and inspections confirm that their thermal performance and environmental indicators comply with national and industry standards. Experts believe that since coal accounts for about 70% of China's primary energy structure and it is difficult to significantly increase alternative energy sources in the short term, the clean utilization of coal is essential for combating air pollution. Promoting the use of semi-coke in small boilers is one of the effective measures to reduce atmospheric pollutant emissions in China. A comparative analysis report by the Institute of Earth Environment, Chinese Academy of Sciences, shows that semi-coke has very low emission factors, close to or even better than high-quality anthracite. Using semi-coke for residential and decentralized coal consumption not only serves as an excellent substitute but also significantly reduces haze, with primary PM2.5 emissions reduced by nearly 80%. Given the environmental, economic, and feasibility advantages of semi-coke, Shaanxi Deli Energy Technology Co., Ltd. (Fandeli Boiler Factory) has been committed to the research, development, and production of environmentally friendly boilers. The high-efficiency semi-coke boilers they produce actively contribute to energy conservation, emission reduction, and the reduction of pollutants from coal consumption. In recent years, addressing the严峻形势 of air pollution control, the company has developed a fully intelligent series of boilers suitable for semi-coke briquettes and pellets, with thermal performance and environmental indicators meeting national and industry standards through testing and inspection. more>

$4200

Category: Metallurgy & Minerals/Common Steel/Other Steel Products

Company: 安阳奥丰商贸有限公司

Product Description: S355J2 is a European standard low-alloy high-strength structural steel with excellent low-temperature impact properties. "S" stands for structural steel, "355" indicates its minimum yield strength of 355 MPa, and "J2" signifies that the material has good impact toughness at low temperatures of -20°C.S355J2 Low-Temperature Impact PropertiesStandard: S355J2 complies with the European standard EN 10025-2:2004.Chemical Composition: Carbon (C) content not exceeding 0.22%, silicon (Si) content not exceeding 0.55%, manganese (Mn) content not exceeding 1.60%, phosphorus (P) content not exceeding 0.025%, sulfur (S) content not exceeding 0.025%.Yield Strength: Depending on plate thickness, the yield strength is ≥355 MPa for thicknesses below 16mm, ≥345 MPa for 16-40mm, ≥335 MPa for 40-63mm, and so on, decreasing as plate thickness increases.Tensile Strength: Typically between 450-680 MPa.Impact Absorbed Energy: At low temperatures of -20°C, the impact absorbed energy is ≥27J.Comparison with National Standard Low-Temperature Impact PropertiesIn Chinese national standards, the equivalent steels to S355J2 are Q345D or Q345E, with specific comparisons as follows:Q345D: Yield strength of 345 MPa, tensile strength of 470-630 MPa, elongation not less than 18%, and impact absorbed energy ≥27J at low temperatures of -20°C.Q345E: Yield strength of 345 MPa, tensile strength of 470-630 MPa, elongation not less than 17%, and impact absorbed energy ≥27J at low temperatures of -40°C.Comparative AnalysisCompared to Q345D, S355J2 has a slightly higher yield strength, while Q345D's impact test temperature is -20°C, and Q345E's impact test temperature is even lower at -40°C. This indicates that Q345E maintains good impact toughness at even lower temperatures.ApplicationsS355J2 is widely used in building structures, bridges, ships, vehicle structural components, and the manufacturing of various tools, cutting tools, molds, and measuring instruments. Q345D and Q345E are also widely used in similar fields, especially within China.SummaryS355J2, along with Q345D and Q345E from Chinese national standards, are all high-strength structural steels with excellent low-temperature impact properties. S355J2 has a slightly higher yield strength, while Q345E undergoes impact testing at even lower temperatures. These steels are selected based on specific engineering requirements and environmental conditions to ensure structural safety and reliability.S355J232mm            2200114506.434S355J232mm            2200114506.408S355J225mm            2200117005.06S355J225mm            2200115004.976S355J225mm            2200116005.016S355J225mm            2200117005.066S355J232mm            2200112006.32S355J232mm            2200111506.276S355J232mm            2200111006.244 more>

$电议

Category: Electrical Equipment & Supplies/Low Voltage Electrical/Relays

Company: 山东航泰航空成套设备有限公司

Product Description: 400Hz 中频静变电源，凭借多项先进技术与出色性能，为用电场景提供可靠支持。采用独特瞬时值双环控制，控制精度高，波形品质好，适配各类负载；运用正弦波脉宽调制（SPWM）技术及国际先进 IGBT/IPM 功率模块，体积小、重量轻，噪音低、效率高且性能稳定。微处理器控制下，输出电压、频率在线可调，运行与故障状态直观呈现。适用于三相平衡及完全不平衡负载，任一相还可作单相电源。独立电参数表实时测显频率、电压、电流等，灵活便捷，且配备RS232（可选配 RS485）通讯串口，满足多样连接需求，是您可靠的电力解决方案。 more>

$12

Category: Hardware & Tools/Abrasive Materials/Synthetic Abrasives

Company: 郑州市海旭磨料有限公司

Product Description: ANSI Standard White Fused Alumina F280# Abrasive Powder Exported to Europe and AmericaSuspension treated, water-washed overflow white fused alumina micropowder is produced from low-sodium aluminum oxide powder. It undergoes electric melting for crystallization, is initially ground into powder by milling machines, then acid-washed to remove impurities, and finally classified via hydraulic overflow. The complex processing results in a concentrated particle size distribution with no large grains, making it suitable for precision grinding and polishing. Due to its high chemical stability, hardness, thermal stability, and wear resistance, it is also widely used in wear-resistant coatings, industrial ceramics, and other industries.White fused aluminum oxide F280 applied to ANSI standard is made from high-quality alumina by melting above 2000°C in the electric arc furnace and cooling. It is white with the main crystal phase alpha-Al2O3. The white alumina produced in tilting electric arc furnaces has the advantage of high density, low porosity, good volume stability, and thermal shock resistance. As one of the most commonly used corundum in the abrasive industry, white fused alumina has a long history in applications because of its high hardness and good self-sharpening advantages. By adopting high-quality grade materials, a strict quality control system, and advanced production technology, HAIXU’s white fused alumina achieves high purity, stable quality, and good particle distribution.The micro-powder from Haixu Abrasives is acid-washed and water-pickled, resulting in better purity and improved grit size distribution.Features of ANSI Standard White Fused Alumina F280# Abrasive Powder Exported to Europe and America:High purity of alumina (above 99.5%), resulting in high hardness, strong grinding power, and high grinding efficiencyProduced via water-based process, ensuring more uniform particle size, no large grains, and no scratching of workpiece surfacesStrong chemical stability, resistant to acids and alkalis, insoluble in waterExcellent thermal stability, wear resistance unaffected at high temperaturesHigh whiteness, does not affect the color of coatings and other productsWide range of applications, not only for grinding and polishing but also as an additive in coatings, ceramics, rubber, plastics, and composite materialsThe electrofused aluminum oxide powder for polishing has outstanding features including small crystal size and impact resistance. By ensuring excellent purity, HAIXU Abrasive's product performs exceptionally well in sandblasting and as a raw material for abrasive tools. Users will experience multi-recycle usage and more durable performance.Physical PropertiesColorWhiteHardnessMohs 9.0Service Temperature1900°CMelting Point2250°CSpecific Gravity3.95 g/cm³Bulk Density3.6 g/cm³Apparent Density1.55-1.95 g/cm³Crystal ShapeMulti-angularChemical Composition:JIS240#-JIS2500#JIS3000#-JIS4000#JIS6000#-JIS10000#Al₂O₃≥99.30%≥99.10%≥98.80%SiO₂≤0.15%≤0.18%≤0.20%Na₂O≤0.32%≤0.35%≤0.38%Fe₂O₃≤0.10%≤0.10%≤0.10%CaO≤0.05%≤0.05%≤0.05%Applications of White Fused Alumina Micropowder:1. Flooring Industry: Wear-resistant overlay paper for wood flooring, silicon carbide tile glaze2. Coatings Industry: Water-based epoxy floor paint, fluorocarbon powder coatings, wear-resistant paint3. Ceramics Industry: Ceramic filter plates, ceramic membrane tubes, honeycomb ceramics, and other industrial ceramics4. Polishing Products Industry: Oil stones, honing stones, precision grinding stones, polishing wax, and other abrasive products5. Coated Abrasives Industry: Metallographic sandpaper, nail files, PVA polishing wheels, nylon polishing wheels, wire drawing wheels, and other abrasive tools6. Diamond Tools Industry: Additive for diamond grinding discs (wet/dry)7. Rubber Bonded Abrasives: Rubber grinding heads, rubber abrasive tools8. Dental Industry: Polishing of dental brackets and dentures9. Adhesives Industry: Wear-resistant and high-temperature resistant adhesives such as electronic potting compounds and bonding agents10. Semiconductor Industry: Free abrasive machining, micro-blasting (for electronic components such as probes, semiconductors, etc.)11. Wear-Resistant Products: Brake devices, insulating plates, wear-resistant printing rollers12. Metal Industry: Grinding and polishing of tungsten-molybdenum alloys, tungsten carbide alloys, tungsten-copper alloys, molybdenum-copper alloys more>

$25

Category: Others

Company: 深圳市捷安盛国际物流有限公司

Product Description: Giansheng International continuously innovates with a professional and pragmatic spirit, providing and implementing competitive logistics solutions for clients. With regional and international thinking and vision, it applies technology to meticulously track every step of service, dedicating itself to logistics development and growing together with clients.International Air Freight Services: Specializing in Hong Kong International Air Freight and Shenzhen International Air Freight. The international air freight network covers Europe, the Americas, the Middle East, Australia, Southeast Asia, and other global regions.Agency Airlines: AK, AF, BA, BI, CA, CV, CX, CZ, HX, SA, SV, SU, OZ, PO, QR, QT, UPS, and other international airlines.Our company ensures timely international air freight operations, ample cargo space, and offers competitively advantageous international air freight prices and services.We always adhere to the business philosophy of being customer-centric, providing honest and professional services for mutual success with clients. Leveraging our geographical advantage of being adjacent to Hong Kong, we strive to become the most influential professional international air freight enterprise in Shenzhen, offering the highest quality international air freight services to a wide range of clients.Air Parcel Tax-Included Express Line● Dual clearance with taxes included; backend UPS/FEDEX delivery ● Lead time: 3-5 working days for pickup (excluding peak season warehouse scheduling, customs clearance delays, and flight delays) ● Flights: Specific inquiries required ● Our own overseas warehouses handle customs clearance, container pickup, unpacking, and delivery (express/truck), ensuring more reliable backend lead times! Invoice and Packing List Requirements: Shipments must provide complete cargo information, including product name, material, purpose, model, HS code, declared value, brand, etc. If discrepancies in client declarations cause any issues, all responsibilities shall be borne by the delivering party. more>

$20

Category: Others

Company: 深圳市捷安盛国际物流有限公司

Product Description: Giant Sun International continuously innovates with a professional and pragmatic spirit, providing and implementing competitive logistics solutions for clients. With a regional and international mindset and vision, it applies technology to meticulously track every step of the service process, dedicating itself to logistics development and growing together with clients.International Air Freight Services: Specializing in Hong Kong International Air Freight and Shenzhen International Air Freight. The international air freight network covers Europe, the Americas, the Middle East, Australia, Southeast Asia, and other global regions.Airlines Represented: AK, AF, BA, BI, CA, CV, CX, CZ, HX, SA, SV, SU, OZ, PO, QR, QT, UPS, and other international airlines.Our international air freight operations are timely with ample cargo space, offering competitive pricing and services.We always adhere to a client-oriented, honest, and professional service philosophy, striving for mutual success with clients. Leveraging our geographical advantage of being adjacent to Hong Kong, we aim to become the most influential professional international air freight enterprise in Shenzhen, providing the highest quality international air freight services to a wide range of clients.Air Freight Tax-Included Express Line● Dual clearance with taxes included; backend delivery by UPS/FEDEX● Lead time: 3-5 working days for pickup (excluding peak season warehouse congestion, customs clearance delays, and flight delays)● Flights: Please inquire for details● Our own overseas warehouses handle customs clearance, container pickup, unpacking, and delivery (courier/truck), ensuring more reliable backend lead times!Invoice and Packing List Requirements:Shipments must provide complete cargo information, including product name, material, purpose, model, HS code, declared value, brand, etc. If discrepancies in client declarations cause any issues, the responsibility lies with the consignor.Packaging Requirements:1. Cartons must be sturdy, with each side large enough to affix two labels. Irregular packaging and soft or easily damaged boxes are not accepted. Loss or damage due to packaging issues will be the responsibility of the sender.2. For FBA shipments, each outer carton must have at least two FBA barcode labels (with clear, legible barcodes that are moisture-resistant and wear-resistant). Labels must be placed on the largest surface of the box to ensure our company can affix the delivery label. If FBA labels cannot be recognized, resulting in Amazon’s inability to properly shelve the goods, the consequences will be borne by the sender. more>

$24

Category: Instruments & Meters/Specialized Instruments/Other Specialized Instruments

Company: 上海市科迎法电气科技有限公司

Product Description: After ten years of dedicated effort, Shanghai Keyingfa Electric Technology Co., Ltd. has achieved mass production of M12 threaded interface connectors and sockets, as well as M8 connectors and sockets. The company has innovatively developed high-temperature-resistant and highly sealed socket products. Through scientific design and the selection of high-quality raw materials, the products offer high reliability, addressing urgent user needs and earning customer acclaim. With stable quality and significant production capacity advantages, timely delivery is ensured. The current annual production capacity is 1 million units. This product series has passed the EU CE environmental directive certification. The company is certified under the *** quality management system. The main products in this series include: M12 sockets (panel mount, PCB solder, special types), 7/8 connectors, mining connectors, solar simulators, M8 connectors, and more. We specialize in customizing products according to specific user requirements. For more detailed product parameters or business discussions, please contact us. more>

$10

Category: Machinery & Equipment/Packaging Related Equipment/Wrapping Machinery

Company: 烟台乐森机械设备有限公司

Product Description: 因原材料波动、因此价格型号也有不同,具体报价请联系销售人员，谢谢。家人们，马丽散封孔袋使用步骤简单！先透孔，把钻孔里的浮煤清理干净；接着用胶带把封孔袋稳稳绑在封孔管上；然后抽掉分隔条，用力揉搓20 - 30下；一边揉一边送管，让封孔袋在孔里膨胀反应；后封口，等30分钟就能接入抽放系统啦！煤矿人的好帮手~马丽散袋装封孔材料在煤矿井下操作的人都知道,以前的瓦斯封孔装置是固定的,受井下地质条件不断变化的因素影响,成孔大小费时费力的，现已矿用马丽散封孔袋410克 铝箔袋装AB材料反应后相遇。矿用500g瓦斯封孔袋反应特点：终止发泡时间（s）：50s-20min2发泡倍数：8-403阻燃性：不燃4表面电阻（Ω）≤3×1085尺寸稳定性（70℃±2，48h）% ≤0.16抗压强度抗压应变10%，kPa ≥200矿用瓦斯封孔袋操作：1.现场无需进行浆液配制，只需将A、B组份分别接入灌浆泵进浆系统，调节体积比以1：1的比例进料，通过静态混合器自动混合，即可实现灌浆。2.灌浆前，宜将两个组分在相应环境温度下放置12小时以上。现场物料温度、矿用瓦斯封孔袋参数：反应温度(℃) ≤140 终止发泡时间（s）： 50s20m 阻燃性 ： 不燃 发泡倍数 ： 840表面电阻（ω） ≤3×108 尺寸稳定性（70℃±2，48h）% ≤0.1 抗压强度抗压应变10%，kpa ≥200制作销售马丽散封孔袋，一套流程下来，封孔稳稳当当！我不允许还有煤矿人不会用马丽散封孔袋！ more>

$7

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: 烟台隆达材料科技有限公司

Product Description: Product Name: Epoxy ER-2022 Two-Component Impact-Resistant Toughness Transformer Motor Potting CompoundBrand: LongdaModel: ER-2022Specification: 20kg/100kgColor: BlackType: Special AdhesiveForm: Solvent-Based AdhesiveComponent Category: Two-ComponentIn Stock: YesCertification: Three System CertificationsCuring Condition: Heat-Curing AdhesiveBonding Strength: OtherApplication: Adhesive FieldPatent Classification: Invention PatentPatent Number: ZL 2022 1 0454267.2Epoxy ER-2022 Two-Component Impact-Resistant Toughness Transformer Motor Potting Compound Performance FeaturesProduct Features:               1. High Toughness: Utilizes a special formula with excellent impact resistance and toughness, ensuring the product is less prone to damage during use.                 2. Specifically Designed for Transformers and Motors: Tailored for potting transformers and motors, effectively protecting internal components and extending equipment lifespan.                 3. Two-Component Formula: Employs a two-component formulation to ensure more stable and reliable curing effects.                 4. High-Temperature Resistance: Exhibits excellent high-temperature resistance, suitable for various harsh environmental conditions. more>

$8000

Category: Machinery & Equipment/Engineering & Construction Machinery/Other Engineering & Construction Machinery

Company: 河北乃信环保科技有限公司

Product Description:        Medium to large tubular conveyor ore powder electric tubular elevator, screw conveyor is suitable for non-viscous dry powder materials and small granular materials.(For example: cement, fly ash, lime, grain, etc.) whileshaftless screw conveyoris suitable for conveying viscous and easily entangledScrew conveyors are divided into two types in terms of conveying form: shaft screw conveyor and shaftless screw conveyor. In terms of appearance, they are divided intoU-type screw conveyor and tubular screwconveyor. Shafted materials. (For example: sludge, biomass, garbage, etc.) The working principle of the screw conveyor is that the rotating spiral blades push thematerialto move for screw conveyor conveying. The force that prevents the material from rotating with the screw conveyor blades is the weight of the material itself and the frictional resistance of the screw conveyor casing to the material. The spiral blades welded on the rotating shaft of the screw conveyor have different blade surface types according to the material being conveyed, including solid surface type, belt surface type, blade surface type, etc. The screw shaft of the screw conveyor has a thrust bearing at the end of the material movement direction to withstand the axial reaction force of the material on the screw. When the machine is long, intermediate hanging bearings should be added.       When the material is added to the fixed chute, due to the gravity of the material and the friction between the material and the chute, the material accumulated in the lower part of the chute does not rotate with the screw body, but only moves forward under the push of the rotating spiral blades, just like a non-rotating nut moving translationally along a rotating screw, achieving the purpose of conveying materials. This machine is convenient for multi-point loading and unloading, and can simultaneously complete mixing, stirring or cooling functions during the conveying process. It is sensitive to overload and prone to clogging; it has crushing loss to materials. The horizontal screw conveyor has a simple structure, making it easy to install, maintain and handle faults. It is suitable for horizontal or slightly inclined (20ºbelow) continuous and uniform conveying of loose materials. The working environment temperature is-20—+40℃, and the material temperature is-20—+80℃. Its speed is relatively lower than that of vertical conveyors. It is mainly used for horizontal or small inclination angle material conveying, and the conveying distance is generally not more than70meters.Medium to large tubular conveyor ore powder electric tubular elevator. more>

Negotiable

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: 东莞市思璞通讯科技有限公司

Product Description: I. Function Overview1. Embedded installation, made of ABS material, with a mold-integrated design for an aesthetically pleasing appearance.2. RJ11 interface, supports connection to digital program-controlled switches or public telephone lines.3. Full-keypad dialing, with the capability to set two one-touch speed dial numbers.4. Configurable for automatic answering of incoming calls and busy tone detection for call termination.5. Supports hotline dialing via switch or dialing from pre-stored number groups on the phone.6. Powered through the telephone line, no external power supply required.7. Equipped with status indicators for standby, ringing, and call in progress.8. Antibacterial structural design, flat and easy to clean.9. Features two customizable buttons for one-touch dialing, volume adjustment, redial, flash hook, etc.II. Operation and Usage1. Power On/Off: Controlled via the hands-free button.2. Answering Calls: When a call comes in, the phone rings. Press the hands-free button to talk or wait for automatic answer.3. Making Calls: Press the hands-free button to dial. Lightly tap the button to end the call after conversation.III. Main Technical Parameters1. Compatible with digital program-controlled switches or public telephone lines providing 48-60V feed voltage.2. Relative Humidity: 10%~90% Ambient Noise: ≤100dB(A)  Protection: IP55 enclosure rating Temperature: -20℃~65℃Atmospheric Pressure: 86~106 Kpa Speaker Power: 2W3. Power Supply: Fed through the telephone line.4. Talking Distance: ≧90CM Sound Level: ≧100DBIV. Packaging Dimensions Unit Size: 206*116*37.5mmPackaging Materials: Pearl cotton, cartonGross Weight: 0.5KGNet Weight: 0.35KG more>