$800

Category: Others

Company: 北京蓝昊环保设备有限公司

Product Description: In the pulverized coal conveying system of blast furnace coal injection in steel plants, the pulverized coal filter produced by Xiangye is a key equipment to ensure the stable operation of the system. The following is a detailed introduction about it: • Function and Principle ◦ Function: The pulverized coal filter is mainly used to filter out coarse and large particles, as well as impurities such as woven fibers and wood chips in the pulverized coal, ensuring smooth pneumatic conveying of pulverized coal, preventing clogging of distributors, lances, and valves on branch pipes, and guaranteeing continuous and stable coal injection.  Principle: When the coal powder containing impurities enters the double-cone filter, turbulence is formed due to the sudden change in the flow channel cross-section. Large particles of impurities settle after impacting the diversion baffle due to inertia, achieving primary filtration. Then, the pulverized coal passes through the honeycomb filter plate, where fibers and fine particles are trapped on the surface of the filter plate, completing fine filtration. The purified pulverized coal then enters the downstream pipeline. • Structural Features ◦ Main Structure: Usually made of carbon steel, it generally adopts a double-cone butt-welded structure. This design ensures stable airflow inside the entire shell, facilitating the smooth passage of pulverized coal, reducing flow resistance, and minimizing wear. Both sides of the filter are flanged for easy installation and dismantling.  Filter Plate: The middle part consists of a wear-resistant manganese steel filter plate, although ceramic composite plates are also used in some cases. The filter plate is designed to be removable for easy maintenance and replacement. For example, the pulverized coal filter plates from Lanhao Environmental Protection feature a quick-release buckle design, allowing replacement by a single person within 10 minutes. • Technical Parameters ◦ Applicable Medium: Pulverized coal + nitrogen or air. ◦ Design Temperature: Generally 100°C. ◦ Design Pressure: Common values include 1.0MPa, 1.6MPa, and 2.5MPa. ◦ Filtration Area: Usually greater than or equal to 4 times the cross-sectional area of the inlet main pipe. ◦ Nominal Diameter: Available in various specifications such as DN40, DN50, DN65, DN80, DN100, DN125, and DN150. • Installation Location: The pulverized coal filter is installed after the air supplement regulator on the main coal injection pipeline at the outlet of the injection tank. This allows for effective filtration of the pulverized coal before it enters the distributor and lance, ensuring the normal operation of downstream equipment. • Maintenance Points ◦ Regular Inspection: Check the sealing of the filter to ensure there is no air leakage; inspect the wear level of the filter plate and replace it promptly if severely worn. ◦ Cleaning Impurities: Regularly clean the impurities in the dust collection chamber at the bottom of the filter. Online dust cleaning or offline maintenance can be selected based on actual conditions. ◦ Component Check: Inspect components such as the diversion baffle for damage or deformation, and repair or replace them promptly if issues are found. more>

$6000

Category: Machinery & Equipment/Coating & Painting Equipment/Electrostatic Generation Equipment

Company: 北京新景园艺有限公司

Product Description: American NelsonSR100SeriesDust Control Large Sprinkler GunThe American Nelson NELSON large sprinkler gun, represented by Beijing Xinjing Company, is widely used in many industrial fields such as coal mine washing plants, power plants, mining plants, steel plants, chemical plants, and coal chemical industries. Its applications include: coal yard dust control, coal yard spray dust reduction, coal yard sprinkling for dust suppression, road spray dust prevention, coal yard sprinkling for dust reduction, coal yard purification, spray dust control systems, and dust management in ore stockyards, among many other uses. American Nelson SR100 Low-Speed Reversing, Fan-Type Sprinkler GunSpray Elevation Angle: SR100-24°, SR100-43°Gun Range: 30-50 metersSpray Angle: 0-360 degrees adjustableGun Flow Rate: 15.6-70.2 m3/hWorking Pressure: 3.5-8 KGSR100 Large Sprinkler Gun 24° Elevation Tapered Nozzle (R: Radius)Nozzle Diameter15.2mm16.5mm17.8mm19.1mm20.3mm21.6mm22.9mm25.4mmkg/cm2m3/hRm3/hRm3/hRm3/hRm3/hRm3/hRm3/hRm3/hR3.515.63318.333213624.13727.53931.54034.84142.8444183621.13724.63927.84131.24136.24340.44449.547520.13823.64027.54231.24334.94540.546622.14025.94330.14434.34638.24744.54949.55160.555723.84327.94532.547374841.350485153.55365.556825.54529.74734.84939.45044.15251.25357.25570.258SR100 Large Sprinkler Gun 43° Elevation Tapered Nozzle (R: Radius)Nozzle Diameter15.2mm16.5mm17.8mm19.1mm20.3mm21.6mm22.9mm25.4mmkg/cm2m3/hRm3/hRm3/hRm3/hRm3/hRm3/hRm3/hRm3/hR3.515.63018.333213624.13727.53831.53834.83942.8424183121.13324.63727.83831.23836.24040.44049.542520.13223.63527.53831.23934.94040.54145.24255.644622.13525.93730.14034.34138.24244.54349.54460.546723.83727.93932.542374341.344484553.54665.548825.53829.74134.84439.44544.14651.24757.24870.250 more>

$1

Category: Others

Company: 龙口市徐福博文木艺厂

Product Description: Our factory has been established since 2004, specializing in the production of wooden ancient architectural models, furniture models, garden planning sand tables, and building models. Over the years, we have continuously strived to develop and now possess advanced skills to serve a wide range of customers. Whether it's sampling and customization or mass production, we have comprehensive technical support. As long as you provide full-range photos and actual dimensions, we can produce the product you desire without the need for on-site visits. In the future, we will continue to work hard to elevate your needs and our artistry to new heights. more>

$160000

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: 科迈尔智能装备（山东）有限公司

Product Description: Why Thaw MeatWith the development trend of the frozen meat import market, a large amount of frozen pork, beef, and other meats have begun to enter the Chinese market. Whether frozen meat is to be sold in supermarkets, wholesale markets, or used for deep processing into meat products, it needs to be thawed to become fresh meat or reach a temperature of around -4°C to meet cutting requirements. This requires the thawing of frozen pork or beef quarters.At the same time, for large meat processing plants, facing production schedules while raw materials remain frozen not only wastes time but also delays processing progress, slows down production output, and affects the company's reputation.The Necessity of ThawingCurrently, the most widely used, effective, and safest method for preserving meat is low-temperature treatment.Thawing involves raising the temperature of frozen meat to melt the ice crystals and restore it to its pre-frozen state.Thawing of frozen meat can be divided into two types based on heat supply: external thawing and internal thawing.External thawing involves heat transfer from a higher-temperature medium to the surface of the frozen meat, with heat gradually moving from the surface to the center. Examples include air thawing and water thawing.Internal thawing involves simultaneous heating of all parts of the frozen meat by the medium, which is internal heating. (Examples include microwave thawing, high-voltage electrostatic thawing, and high-voltage radio frequency thawing.)Working Principle of Thawing MachinesUsing low-temperature, high-humidity circulating air passing over the surface of the frozen product to slowly thaw it under relatively small temperature differences. The air blower circulates air under multiple air plates to blow over the product being thawed, creating uniform airflow organization. A certain level of humidity increases the heat conduction medium in the air. The thawing temperature, humidity, and time are automatically controlled in stages through a PLC microcomputer to achieve thawing (low temperature around 10°C to inhibit bacterial growth, humidity around 90%).Components of Low-Temperature High-Humidity Thawing Machines1.Insulated Thawing Chamber2.Air Circulation System3.Humidification and Heating System4.Refrigeration System5.Electrical Control System1. Insulated Chamber: more>

$100

Category: Hardware & Tools/Seals & Gaskets/Other Seals

Company: 广东东晟密封科技有限公司

Product Description: Manufacturer of PTFE Seal Components for Hydraulic EquipmentTechnical Characteristics and Industrial Applications of PTFE Seal Components for Hydraulic Equipment!PTFE Seal Components (DSHmfcom) are high-performance elements in the field of industrial sealing, specifically designed for extreme temperature environments ranging from -60°C to 260°C. Made from pure polytetrafluoroethylene (PTFE) material, these PTFE seal components exhibit excellent chemical resistance and mechanical properties in various media such as hydraulic oil, fire-resistant oil, water, and gas. They serve as core sealing solutions in industrial scenarios including hydraulic equipment, standard cylinders, machine tools, and hydraulic presses. Their wide temperature range adaptability and corrosion resistance directly determine the reliability and service life of equipment.I. Material Science Advantages of Polytetrafluoroethylene (PTFE)1. Chemical Stability and Corrosion Resistance:The carbon-fluorine bonds in PTFE grant it excellent chemical inertness, enabling it to withstand strong acids, strong alkalis, organic solvents, and almost all chemical media, earning it the title "King of Plastics."Non-stick and Low Permeability: With an extremely low surface energy, it hardly adheres to any substances while effectively blocking medium penetration, making it suitable for high-cleanliness applications.2. Physical Properties and Extreme Environment Adaptability:High and Low Temperature Resistance: Maintains stable physical properties within the range of -60°C to 260°C, with short-term tolerance for even higher temperatures.Self-Lubrication: The friction coefficient is as low as 0.04-0.1, reducing wear on sealing surfaces and extending equipment life.II. Engineering Advantages in Static Sealing ApplicationsHigh-Pressure Stability: Through filler modification (e.g., carbon fiber, glass fiber), the compressive strength is enhanced, and PTFE Seal Components effectively suppress cold flow deformation in high-pressure static sealing.Multi-Medium Compatibility: Exhibits broad-spectrum tolerance to media such as hydraulic oil, fire-resistant oil, water, and gas, making it particularly suitable for corrosive environments in chemical and energy industries.Long-Term Reliability: In static sealing conditions, PTFE's aging resistance is significantly superior to traditional rubber materials, extending maintenance cycles by 3-5 times.III. Typical Industrial Application Scenarios1. Hydraulic Equipment and Cylinder Sealing:In standard cylinders, PTFE seal components achieve bidirectional sealing through combined designs (e.g., paired with O-rings), ensuring uniform pressure distribution and near-zero leakage rates.2. Machine Tools and Hydraulic Presses:Used in static sealing parts such as guide rails and spindles to block the intrusion of cutting fluid and metal debris, ensuring the operational precision of precision components.3. Chemical and Energy Equipment:In scenarios such as reaction kettles and pipeline flanges, their corrosion resistance can withstand strong acids and alkalis, reducing the frequency of shutdown maintenance.IV. Technological Frontiers and Industry TrendsMaterial Modification Innovations:Nano-fillers (e.g., molybdenum disulfide, carbon fiber) further enhance PTFE's wear resistance and anti-creep properties, adapting to higher load conditions.Intelligent Integration:Embedded sensors monitor sealing status in real time, enabling predictive maintenance and reducing the risk of sudden failures.Green Manufacturing Processes:Development of recyclable PTFE composite materials reduces industrial carbon footprints and complies with environmental policy requirements.The technological innovation of PTFE Seal Components is not only a triumph in material science but also a perfect integration of engineering wisdom and industry needs. As industrial equipment advances toward higher pressure, temperature, and precision, their technological iterations will continue to push the boundaries of sealing performance.Dongsheng Seals was established in 1992. Over the past 32 years, it has focused on sealing technology innovation, forming a doctoral team of over 10 members and establishing an industry-leading testing center equipped with dozens of high-speed and efficient production machines. The company is certified under ISO9001 and IATF standards, holds over 10 national patents, has developed 235+ material formulas and 1,725+ selection solutions, and maintains an inventory of over 1 million products and 100,000+ models and specifications. As a leading enterprise in China's sealing industry, Dongsheng (DSHmfcom) provides sealing system solutions for renowned companies such as Sany Heavy Industry, PetroChina, BYD, and Gree. Guided by the philosophy of "Dongsheng Intelligent Manufacturing, Sealing Reliability," it continues to tackle technical challenges and contribute to the development of China's industry. more>

$15.5

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: 德州万群橡胶制品有限公司

Product Description: more>

$10000

Category: Others

Company: 陕西德力能源科技有限公司

Product Description:        The maintenance of condensing low-nitrogen gas boilers mainly involves routine inspections, cleaning, and replacement of parts. Conducting routine inspections ensures the safety of the condensing gas boiler during operation, allowing for timely identification and resolution of issues. Cleaning is a crucial aspect of maintaining boiler efficiency, including the removal of dust and dirt to ensure the burner functions properly. Replacing certain vulnerable parts, such as burners and valves, is also an important maintenance step. Timely replacement of these parts can prevent performance degradation or failures due to wear and tear.       Condensing low-nitrogen gas boilers are widely used across various industries due to their high efficiency and environmental benefits. Examples include hotels, residential communities, aquaculture, bathing facilities, shopping malls, schools, hospitals, and enterprises and institutions. more>

Negotiable

Category: Chemicals/Dyes/Basic Dyes

Company: 陕西德力能源科技有限公司

Product Description: Drum: It is a cylindrical vessel in natural circulation and multiple forced circulation boilers that receives feedwater from the economizer, connects the circulation circuit, and delivers saturated steam to the superheater. The drum body is made of high-quality thick steel plates and is one of the heaviest components in the boiler.The main functions of the drum are to store water, perform steam-water separation, and discharge brine and sludge from the boiler water during operation to prevent boiler water with high concentrations of salts and impurities from entering the superheater and steam turbine along with the steam. If these salts and impurities cause scaling, salt deposition, and corrosion in the superheater tubes and steam turbine passages, they can affect the economic and safe operation of the equipment. The steam at the boiler outlet generally meets certain quality standards. The internal devices of the drum include steam-water separation and steam washing devices, feedwater distribution pipes, blowdown and chemical dosing equipment, etc. The steam-water separation device separates saturated steam from the water coming from the water-cooled walls and minimizes the fine water droplets carried in the steam. Medium and low-pressure boilers commonly use baffles and gap baffles as coarse separation elements. In boilers above medium pressure, various types of cyclone separators are widely used for coarse separation, followed by further separation using louvers, wire mesh, or steam distribution plates. With advancements in water treatment technology, steam separation devices tend to be simplified and standardized. Blowdown devices (including continuous and periodic blowdown) can discharge a portion of boiler water containing higher salts and sludge during boiler operation. The drum is also equipped with monitoring and protection facilities such as water level gauges and safety valves. more>

Negotiable

Category: Chemicals/Dyes/Basic Dyes

Company: 陕西德力能源科技有限公司

Product Description: The furnace, steam drum, burner, water-cooled wall, superheater, economizer, air preheater, framework, and furnace wall in the boiler body of a steam generator constitute the core components for steam production, collectively referred to as the boiler proper. The two most critical components in the boiler proper are the furnace and the steam drum.Furnace: Also known as the combustion chamber, it is the space where fuel is burned. A furnace that burns solid fuel on a grate in a bed of fire is called a stoker-fired furnace, also known as a bed furnace; a furnace that injects liquid, gaseous, or pulverized solid fuel into a fire chamber for combustion is called a chamber-fired furnace, also known as a fire chamber furnace; a furnace where air suspends coal particles for fluidized bed combustion, suitable for burning low-grade fuels, is called a fluidized bed furnace; a cylindrical furnace that uses an air stream to make coal particles rotate at high speed and burn intensely is called a cyclone furnace.The cross-section of a furnace is generally square or rectangular. Since fuel burns in the furnace to form flames and high-temperature flue gas, the furnace walls surrounding it are constructed from high-temperature-resistant and insulating materials. Water-cooled wall tubes are often installed on the inner surface of the furnace walls, which not only protect the walls from being damaged by fire but also absorb a significant amount of radiant heat from the flames and high-temperature flue gas. The structure, shape, volume, and height of the furnace must ensure complete fuel combustion and reduce the flue gas temperature at the furnace outlet below the temperature at which slag begins to condense.When the temperature inside the furnace exceeds the ash melting point, the ash becomes molten. Molten slag particles adhere to the water-cooled wall tubes or other components when they come into contact with them. As the adhered ash particles accumulate, they form slag blocks, a process known as slagging. Slagging reduces the heat transfer efficiency of the boiler's heating surfaces. In severe cases, it can block the flue gas flow passages, affecting the safe and economical operation of the boiler.Furnace design must fully consider the characteristics of the fuel used. Each boiler should ideally burn the fuel it was designed for. When fuels with significantly different characteristics are used, the economic efficiency and reliability of boiler operation may be compromised. 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: Features of Vandelay Gas Modular Boilers 1. Modular design, simple structure, flexible and convenient installation The concept of a modular gas boiler is equivalent to splitting a single large boiler into several smaller units. Therefore, modular boilers can achieve the scale of any steam tonnage through "simple parallel combination" in quantity, making them capable of replacing various heating and hot water boilers below 10 steam tons commonly used today. In large boilers, the air-gas mixture is delivered into the furnace by a blower, which generates significant noise, causing sound pollution and worsening the working environment for employees. In contrast, modular boilers utilize atmospheric combustion, eliminating the need for a blower. As a result, they operate very quietly—only a slight "whooshing" sound is heard during combustion, with no other noise. Most modular boilers use burners made of special aluminized steel materials, specifically designed with aerodynamic processes to ensure highly efficient gas combustion. Tests have proven a combustion efficiency of over 98%. Complete combustion reduces the nitrogen oxide content in the flue gas, minimizing environmental pollution. Vandelay gas modular boilers feature staged startup, resulting in significant energy savings. The modular boiler system automatically adjusts the startup and shutdown of modules based on the system’s thermal load through its staged startup function. When one module reaches full load, another module is activated, ensuring that the system’s heat output always matches the actual demand. This guarantees that each boiler operates at high efficiency, maximizing the overall system’s operational thermal efficiency and completely eliminating the energy waste common in traditional large boilers. Additionally, the control system automatically balances the operating time of each module, extending the overall system lifespan. In summary, the Vandelay gas modular boiler series represents a breakthrough in design concept and form compared to traditional boilers. This series offers unparalleled advantages in environmental protection, energy efficiency, safety, automation, lifespan, installation, power consumption, capacity expansion, footprint, and space utilization. It has been widely applied in various new and renovated heating and hot water projects. Vandelay gas modular boilers are safe and reliable. In open installation systems, the water pressure system operates under constant atmospheric pressure and includes multiple comprehensive safety protections: flameout protection, dry burn protection, freeze protection, low water level protection, automatic exhaust protection, overheat protection, and leakage protection. In closed installation systems, the sealed water circuit operates under a pressure of 0.05–0.3 MPa. In addition to the safety features of open systems, closed systems also include: pressure expansion protection, low water pressure protection, and a safety pressure relief device for high-pressure conditions. more>

$10000

Category: Chemicals/Plastics & Products/Plastic Pipes

Company: 无锡嘉弘塑料科技有限公司

Product Description: Factory Direct PVC Granules for Electrical Housing Injection MoldingOur company has specialized in producing modified PVC granules for over 30 years, certified with the ISO9001:2000 quality management system. Our products now extend to various fields including home appliances, furniture, building materials, automotive, packaging, manufacturing, and crafts.The PVC granules for electrical housing are environmentally friendly specialty PVC granules developed by our company: This material features an eco-friendly formula, and its products comply with EU environmental standards. It offers excellent fluidity and moldability, with high surface finish of the finished products, suitable for applications requiring high performance indicators. The processing method is injection molding.If you have other specific requirements for the product, please contact our representative, Ms. Feng Huifen. Our engineers will formulate the appropriate PVC raw material tailored to your product needs!Contact: Ms. Feng HuifenPhone: 15061810102QQ: 1511897820  ;   WeChat: fhf15061810102Email: 15061810102@139.comCompany Address: Zhongxing East Road, Luoshe Town, Huishan District, Wuxi City, Jiangsu Province more>

Negotiable

Category: Others

Company: 深圳市孚为智能科技有限公司

Product Description: With the rapid development of global trade, the customs and logistics industries have an increasing demand for efficient and intelligent clearance systems. Fuwai Intelligent Gate System, leveraging advanced artificial intelligence technology, achieves automated recognition, rapid clearance, and intelligent management, significantly improving logistics efficiency and security. So, what core technologies does this system employ?1. High-Precision Image Recognition TechnologyThe system is equipped with advanced computer vision technology, using high-definition cameras and deep learning algorithms to quickly identify truck license plates, container numbers, cargo types, and other information. Combined with OCR (Optical Character Recognition) technology, it accurately extracts key data, reduces manual entry errors, and speeds up clearance.2. Artificial Intelligence and Deep LearningBased on an AI-powered intelligent analysis engine, the system can autonomously learn the characteristics of different vehicle types, container types, and cargo, continuously optimizing recognition accuracy. Through deep learning models, it adapts to complex environments (such as nighttime, rain, and fog), ensuring stable operation around the clock.3. Internet of Things (IoT) and Automated ControlThe system integrates IoT technology to enable intelligent coordination of gate equipment (such as barriers, weighbridges, and RFID readers). When vehicles arrive, the system automatically completes weighing, identity verification, and release, requiring no manual intervention throughout the process, greatly improving traffic efficiency.4. Big Data Analysis and Real-Time MonitoringBy collecting real-time gate traffic data, the system uses big data analysis technology to generate reports on traffic statistics, anomaly alerts, and more, helping customs and enterprises optimize logistics scheduling. At the same time, combined with an intelligent monitoring system, it can issue warnings for suspicious behavior, ensuring cargo security.5. Multi-Layer Security Verification MechanismTo ensure security, the system integrates multiple identity verification methods, such as license plate recognition, RFID electronic tags, and facial recognition, to prevent impersonation or illegal passage. Additionally, blockchain technology can be applied for key data certification, ensuring information immutability.6. Cloud Collaboration and Intelligent PaymentThe system supports cloud data synchronization, facilitating multi-department collaborative management. It also integrates electronic payment interfaces, supporting methods such as QR code scanning and contactless payment, shortening settlement time, and enhancing user experience.Fuwai Intelligent Gate System, through core technologies like AI visual recognition, IoT, and big data, achieves automated and intelligent clearance management, not only improving logistics efficiency but also enhancing security and traceability. In the future, with continuous technological upgrades, intelligent gates will play an even more important role in global trade. more>

$面议

Category: Hardware & Tools/Cutting Power Tools/Drill Bits

Company: 惠州绿保科技有限公司

Product Description: Functional Description:The automatic screen printing machine adopts a single-polar plate sealing adhesive path through screen printing, and after lamination and curing, it completes the water channel sealing of the bipolar plate. This equipment can achieve functions such as automatic material positioning, automatic alignment and lamination, and automatic loading and unloading. It features vertical plate lifting, no backflow of adhesive, and the ability to print with a small amount of adhesive. Screen printing offers advantages such as high precision and high production efficiency.Key Parameters• Printing Speed: 15s/pcs • Plate Frame Size: 760x360mm • Squeegee Air Pressure: 0.6MPa • Adhesive Film Thickness Deviation: 15μm± 0.5μm • Printing Platform Flatness: ≤0.02mmCompany IntroductionGreen Protection Technology was established in 2017 with a registered capital of 42.68 million yuan. It is a holding enterprise of Jingshan Light Machinery Holding Co., Ltd. (Jingshan Light Machinery Group). It is a high-tech enterprise focused on the research, development, and manufacturing of hydrogen energy intelligent equipment, providing customers with a full set of hydrogen energy R&D testing equipment and highly competitive intelligent overall solutions for hydrogen energy factories. Leveraging the management and technical advantages of Jingshan Light Machinery Group, Green Protection Technology boasts an excellent talent structure, with over 60% of employees holding bachelor's degrees or higher. The organization is efficiently managed, producing 300 sets of hydrogen fuel cell equipment annually. With extensive technical experience, the company has obtained 59 patents related to hydrogen fuel cell equipment. It has already established hydrogen fuel cell laboratories, testing equipment, and intelligent production lines for numerous hydrogen energy enterprises and research institutions. more>

$面议

Category: Machinery & Equipment/Seals & Gaskets/Gaskets

Company: 惠州绿保科技有限公司

Product Description: Function Description:The bipolar plate adhesive ring applicator is used to complete the sealing of graphite/metal bipolar plates with adhesive rings. It features automatic primer spraying, automatic adhesive ring application, completion of double-sided adhesive ring application, and automatic plate collection. Utilizing vision-guided adhesive spraying, intermittent adhesive dispensing, and adhesive wiping functions to ensure no adhesive overflow, no adhesive breakage, and no bubble generation. It can also be optionally equipped with an adhesive tank depth measurement module for online real-time quality monitoring.Key Parameters• Dispensing Accuracy: 0.02mm • Minimum Dispensing Dot Diameter: 0.2mm • Dispensing Platform Flatness: ≤ 0.05mmCompany IntroductionGreenTech was established in 2017 with a registered capital of 42.68 million yuan. It is a holding enterprise of Jingshan Light Machinery Holding Co., Ltd. (Jingshan Light Machinery Group). As a high-tech enterprise focused on the R&D and manufacturing of hydrogen energy intelligent equipment, it provides customers with a full set of hydrogen energy R&D testing equipment and highly competitive intelligent overall factory solutions for hydrogen energy. Leveraging the management and technical advantages of Jingshan Light Machinery Group, GreenTech boasts an excellent talent structure, with over 60% of employees holding bachelor's degrees or higher. The organization is efficiently managed, producing 300 sets of hydrogen fuel cell equipment annually. With extensive technical experience, the company has obtained 59 patents related to hydrogen fuel cell equipment. It has already established hydrogen fuel cell laboratories, testing equipment, and intelligent production lines for numerous hydrogen energy enterprises and research institutions. more>

$10.00

Category: Chemicals/Paints & Coatings/Plastic Coatings

Company: 成都科冠涂料有限公司

Product Description: Water-based wall paint - Various water-based wall coatings (supplied in Sichuan, Chengdu, Yunnan, and other regions), stable quality, good adhesion; Manager Sun: 15208256966, Guan brand paint wholesale with a minimum order of 20 kilograms. Koguan water-based wall paint, also known as water-based latex paint, is made with synthetic resin emulsion as the film-forming substance, water as the solvent, and added with pigments, fillers, and additives. This paint has good breathability and strong alkali resistance. When the humidity difference inside and outside the coating is large, it is less prone to blistering, making it suitable for painting on cement and plaster surfaces of interior and exterior building walls.Product Features:1. Environmentally friendly, good washability, excellent breathability, strong aging resistance, high bonding strength, good color and gloss retention.2. It has a certain level of moisture permeability, expelling excess water vapor from the wall while preventing external moisture from entering, ensuring the paint film does not blister, thus keeping the building in perfect condition for a long time.3. The paint film has high elongation, resisting substrate cracking, filling wall cracks, preventing rainwater from entering the wall, protecting the building from carbonation, and extending the building's lifespan.4. The coating surface formed by the light-curing core-shell effect has a dense molecular arrangement, is sturdy, and less prone to dust adhesion, overcoming the poor stain resistance of traditional elastic coatings.Product Application:1. Wall process flow: Clean, repair, inspect the substrate → Sandpaper → Apply the first coat of waterproof putty → Sandpaper → Apply the second coat of waterproof putty → Sandpaper → Apply the first coat of water-based wall paint → Repair putty and sandpaper → Apply the second coat of water-based wall paint.2. Reasonably arrange the construction workload. Before construction, ensure a work surface is completed in one go. When applying the main coating, ensure the entire work surface is coated at once to avoid leaving coating marks.3. Avoid painting when the substrate temperature is high. If construction is necessary, take appropriate cooling measures. Try to avoid construction under direct sunlight to prevent scaffold marks.4. The relative environmental humidity should be below 85%. Before painting, ensure the substrate moisture content is below 10% and the pH value is below 10.5. Stop construction on rainy days. If rain occurs within 2 hours after application, inspect the painted wall before reapplying and perform spot repairs as needed.Some content is excerpted from the internet. If there is any discomfort, please contact us, and we will address it promptly. Thank you. more>

$面议

Category: Instruments & Meters/Testing Machines/Other Testing Machines

Company: 惠州绿保科技有限公司

Product Description: Functional Description:This device is used for the airtightness testing of membrane electrodes, bipolar plates, and fuel cell stacks. It features two detection modes: differential pressure detection and mass flow detection, capable of detecting hydrogen, oxygen, water leakage, and cross-leakage. Equipped with a barcode scanning function, it allows for the storage, analysis, and traceability of measurement data. Key Parameters • Test Accuracy: ±(0.8% reading + 0.2 full scale) • Pressure Accuracy: ±50N • Maximum Cylinder Pressure: 2.54tCompany IntroductionGreenTech was established in 2017 with a registered capital of 42.68 million yuan. It is a holding enterprise of Jingshan Light Machinery Holding Co., Ltd. (Jingshan Light Machinery Group). As a high-tech company specializing in the R&D and manufacturing of hydrogen energy intelligent equipment, it provides customers with a full set of hydrogen energy R&D testing equipment and highly competitive intelligent overall solutions for hydrogen energy factories. Leveraging the management and technical advantages of Jingshan Light Machinery Group, GreenTech boasts an excellent talent structure, with over 60% of employees holding bachelor's degrees or higher. The company operates with high organizational efficiency, producing 300 sets of hydrogen fuel cell equipment annually. With extensive technical experience, it has obtained 59 patents related to hydrogen fuel cell equipment. GreenTech has successfully established hydrogen fuel cell laboratories, testing equipment, and intelligent production lines for numerous hydrogen energy enterprises and research institutions. more>

$4400

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

Company: 安阳奥丰商贸有限公司

Product Description: Q460C is a type of high-strength low-alloy structural steel defined in the Chinese national standard GB/T 1591-2018 "High Strength Low Alloy Structural Steels." The "C" indicates the quality grade of the material, typically associated with impact testing at 0°C. Q460C is widely used in large engineering structures such as bridges, ships, boilers, and pressure vessels due to its high strength and good toughness.Internationally, there is no direct equivalent material for Q460C, but similar foreign standard materials can be identified based on its chemical composition and mechanical properties. The following are some possible international equivalents:**European Standard (EN)**: The chemical composition and performance of Q460C may be similar to S460M or S460NL in the European standard EN 10025-6. These materials also have a yield strength of approximately 460 MPa, with comparable high strength and good toughness.**American Society for Testing and Materials Standard (ASTM)**: Q460C may be similar to A572 Grade 65 or A709 Grade 50W, which are high-strength low-alloy steels defined in American standards.**Japanese Industrial Standard (JIS)**: Q460C may be similar to SM490YB or SM490C in JIS G 3106, which are steels for welded structures defined in Japanese standards.**German Industrial Standard (DIN)**: Q460C may be similar to St 52-3 U in DIN 17100 or W St E 460 in DIN 17102, which are structural steels defined in German standards.**British Standard (BS)**: Q460C may be similar to 55D or 50D in BS 4360, which are steels for welded structures defined in British standards.In practical applications, specific engineering requirements and usage environments must be considered when selecting alternative materials. Steel standards from different countries may vary in terms of chemical composition, mechanical properties, impact test temperatures, and other aspects. Therefore, engineers and procurement personnel should conduct detailed comparisons of the specific requirements of relevant standards and perform material testing when necessary to ensure that the selected material meets engineering needs and safety standards. Additionally, using internationally recognized material standards can help reduce obstacles in material substitution and certification processes, facilitating international trade and project cooperation.High-strength coiled plate3.75mmQ460C0.01500.0128.900High-strength coiled plate3.75mmQ460C0.01500.0128.710High-strength coiled plate3.75mmQ460C0.01500.0128.770High-strength coiled plate3.75mmQ460C0.01500.0128.780High-strength coiled plate3.75mmQ460C0.01500.0128.820High-strength coiled plate3.75mmQ460C0.01500.0128.550High-strength coiled plate3.75mmQ460C0.01500.0128.450High-strength coiled plate3.75mmQ460C0.01500.0127.530 more>

$50000

Category: Others

Company: 广州市应科化工科技有限公司

Product Description: Fei Zai, Yi Li MianPhone. WeChat. Telegram: 13080853061Telegram: @rst888rstQQ: 1124045227 Price: 50,000 RMB/kg Purity: 99.99% Common names: Yi Li Mian, Red Bean, No. 5, Fei Zai Molecular formula: C16H13N3O3  Molecular weight: 295.30  Packaging: 5 kg/drum or 25 kg/drum Appearance: Tablets, Pills Effect: Medical use as a central nervous system depressant and hypnotic, with sedative, hypnotic, and anti-anxiety effects more>

$500

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: 广州大熙化工新材料有限公司

Product Description: 1-EthynylcyclohexanolEnglish Name: 1-EthynylcyclohexanolTrade Name: CyclohexynolCAS Number: 78-27-3Molecular Formula: C8H12OMolecular Weight: 124.18MDL Number: MFCD00003858EINECS Number: 201-100-9RTECS Number: GV9100000Appearance: White crystal or colorless transparent liquidMelting Point: 30-32°C,Density: 0.9763 g/mL (24°C)Boiling Point: 180°C (760 mmHg)Refractive Index: 1.4820 (20°C)Flash Point: 73°CPurity: ≥99%Main Use: Organic synthesis.Manager Wang 13726838498 Guangzhou Daxi Chemical New Materials Co., Ltd. more>

Negotiable

Category: Silk Yarn

Company: 海盐金溢绢纺有限责任公司

Product Description: Pure oil silk and tsumugi silk belong to natural silk, while real silk refers to silk made from silkworm or spider silk. Since tsumugi silk is a blend of mulberry silk, cocoon silk, and wild silk, rather than from a single source, some people may question whether tsumugi silk qualifies as real silk. However, according to the definition by the International Fiber Organization, real silk refers to silk made from the silk of silkworms (such as silver reel silkworms and tussah silkworms) and some wild silkworm species (like the axe-holding silkworm, spicy silkworm, and mulberry hook silkworm), or spider silk (such as from the golden phoenix spider and Emei spider). Therefore, tsumugi silk also falls within the category of real silk. more>