$2000

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: 扬州纬沃自动化设备有限公司

Product Description: The DKJ type angular travel electric actuator is the execution unit in the DDZ-Ⅱ and Ⅲ series instruments, used in conjunction with DDZ-Ⅱ and Ⅲ control unit instruments. It is powered by AC power, accepts a unified standard signal of 4～20mA, DC (or 0～10mA, DC), input signal and the feedback signal from the position transmitter. Through comparison by the servo amplifier, it outputs a switching signal to drive the motor. After mechanical deceleration, the input signal is converted into a corresponding angular displacement of the output shaft: automatically operating devices such as damper baffles, butterfly valves, and ball valves to complete the system's automatic regulation tasks. It is widely used in regulation systems of industrial sectors such as power plants, metallurgy, petroleum, chemical industry, machinery, light industry, textiles, food, and pharmaceuticals.1. Input signal: Switching forward and reverse signals (220V AC).2. Output signal: DC 4-20mA.3. Effective displacement of output shaft: 0--90º4. Conversion error: Not greater than ±0.1% FS.5. Limit setting range: Close limit 0-80%; Open limit 20-100%.6. Long-term stability: ±0.1% FS.7. Power supply: AC220V±20%.8. Ambient temperature: －20-75℃9. Ambient humidity: ≤95% more>

$3

Category: Chemicals/Paints & Coatings/Anticorrosive Coatings

Company: 中大恒建北京新材料科技有限公司

Product Description: Tunnel-specific energy-storage luminescent coating is a photoluminescent paint that utilizes technology to convert special components in rare-earth materials into visible light waves. This principle allows the coating to absorb and store light energy from any light source (including car headlights, electric lights, etc.). After the light source is removed, the stored energy is slowly released in the form of light, enabling it to glow continuously for over ten hours in darkness. This coating features light enhancement, delayed luminescence, scrub resistance, pollution resistance, and a long service life. Its light waves have the special ability to penetrate smoke during or after an emergency light outage, providing emergency illumination to ensure safe driving sight distances. In the event of a tunnel fire, it can offer lighting for emergency escape, reducing loss of life and property.The common colors for the luminescent coating topcoat are creamy white, beige, cream yellow, light blue, light green, and cherry red, with custom color matching available upon request. The afterglow light waves emitted during extended darkness are yellow-green, blue-green, and sky blue, respectively.Performance Characteristics of Tunnel Luminescent Coating1. Possesses the properties of tunnel fireproof coatings, along with excellent weather resistance, stain resistance, acid and alkali resistance, scrub resistance, and decorative functionality.2. High light-enhancement and energy efficiency: under the same illumination conditions, it can reduce the power of lighting fixtures (or increase the distance between lights). Depending on the light source, it can improve lighting efficiency by 20% to 60%.3. Delayed luminescence time ≥ 24 hours, providing escape lighting in darkness during sudden fires (or other disasters).4. The auxiliary lighting offers soft light, with strong smoke-penetrating ability of the light waves, enhancing sight distance and visibility over long ranges.5. Excellent visual comfort, reducing the "black hole" and "blind light" phenomena at tunnel entrances and exits.6. The product is non-toxic, harmless, pollution-free, non-radioactive, safe, and environmentally friendly, with a service life ≥ 20 years.7. Provides auxiliary light-enhancement lighting, emergency lighting, and indicator lighting for emergency escape. more>

$5

Category: Construction & Building Materials/Thermal Insulation Materials/Other Insulation Materials

Company: 中大恒建北京新材料科技有限公司

Product Description: Underwater non-dispersible grout is a powdered grouting material composed of water-soluble polymers, surfactants, and other compounds. It exhibits strong resistance to dispersion and excellent fluidity, enabling self-leveling and self-compacting of underwater concrete while preventing the dispersion of cement and aggregate during underwater construction. This grout is suitable for various underwater concrete pouring projects, including caisson sealing, cofferdams, caissons, stone pitching grouting, underwater diaphragm wall construction, leveling and filling of underwater foundations, large-scale seamless construction projects such as RC slabs, large-diameter cast-in-place piles, docks, dams, reservoir repairs, waterproof impact-resistant reinforcement for drainage outlets, underwater pile caps, seawall revetments, slope protection, pile sealing and leakage stoppage, as well as other underwater projects where conventional concrete is difficult to apply. CBGM underwater non-dispersible grout is not limited by water depth, construction surface, or concrete volume (it has been successfully used in projects with depths up to 37.8 meters and concrete volumes ranging from a few cubic meters to several thousand cubic meters). It also remains unaffected by tidal fluctuations during concrete construction in intertidal zones. more>

$26

Category: Others

Company: 直尚化工(上海)有限公司

Product Description: Grade: 628-60Type: Hydroxy Acrylic ResinApplication: Plastic PaintCharacteristics: Good ABS adhesion, high hardness, toughness, excellent balanceTechnical SpecificationsItem Parameter IndexAppearance Transparent viscous liquidColor (Gardner) ≤1OH% (solid basis) 2.8Viscosity (25°C, Gardner) Z-Z4Non-volatile content (%) 60±1Acid value (mgKOH/g) 3-8 more>

$询价

Category: Chemicals/Petrochemicals/Base Oil

Company: 广东中海南联能源有限公司

Product Description: Our company primarily focuses on over ten major categories including high-quality white oils, base oils, solvent oils, vaselines, paraffins, chemical products, lubricants, plastics, rubbers, petroleum resins, plasticizers, and more, with 500 products serving as the core of our brand.Base Oils:No. 15, No. 20, No. 32, No. 46, No. 68     60N, 150N, 250N, 400N, 500N  4006  SBS 4010 150BS150N Base OilI. Product IntroductionZhonghai Nanlian 150N base oil is an industrial white oil produced from petroleum lubricant fractions through dewaxing, chemical refining, or hydrogenation. This product is a colorless, odorless, transparent liquid with excellent properties including colorlessness, odorlessness, high stability, high flash point, high viscosity index, low pour point, and broad applicability. It also offers good storage stability and light stability.II. Application Scope● Can be used in the production of automotive lubricants.● Can be used in the production of anti-adhesive agents for printing pastes.● Can be used in the production of printing coatings and additives.● Can be used in the production of plastic pellets, lunch boxes, and PPE semi-finished products.● Can be used in the production of internal lubricants and softeners for plastics.III. Quality Specifications of 150N Base OilItemQuality SpecificationTest ResultTest MethodKinematic Viscosity (40°C), mm²/s25.46ASTM D445Kinematic Viscosity (100°C), mm²/s4.8-5.85.014ASTM D445AppearanceTransparentTransparentVisual InspectionSaybolt Color≥+27+30ASTM D156Viscosity Index≥100108ASTM D2270Flash Point (Open Cup), °C≤220221ASTM D92Pour Point, °C≤-15-17ASTM D97Acid Number, mgKOH/g≤0.01<0.010GB/T 4945Saturated Hydrocarbons, % (m/m)≥97>99.50SH/T 0753Density (20°C), kg/m³825-870837.2ASTM D4052Total Sulfur Content, mg/kg≤10<1.0ASTM D5453Oxidation Stability (Rotating Bomb, 150°C)≥300350SH/T 0193Evaporation Loss (Noack Method, 150°C, 1h), % (m/m)≤1510.2ASTM D5800Demulsibility [54°C, (40-40-0), min]≤105GB/T 7305 more>

$10000

Category: Hardware & Tools/Castings/Iron Castings

Company: 新河县泽隆贝迪水利机械厂（个体工商户）

Product Description: The bidirectional water-stop cast iron copper-inlaid gate is a key equipment used in water supply and drainage, flood control, sewage treatment, and other engineering projects. It features bidirectional pressure-bearing and bidirectional water-stop functions, preventing media backflow. Its core structure includes a gate frame, gate plate, sealing strip, guide rail, and adjustment mechanism, made of cast iron to ensure strength and corrosion resistance. Structural FeaturesMaterial: The main body uses gray cast iron or ductile iron, with copper or rubber inlaid on the sealing surface. The outer arc design enhances uniform stress distribution. Sealing Performance: The sealing gap is adjusted to ≤0.1mm via a wedge device, with forward leakage ≤0.7L/m·min and reverse leakage ≤1.25L/m·min. Installation: Supports embedded steel plate or bolt fixation, compatible with manual/electric/hydraulic hoists. Performance ParametersPressure-Bearing Capacity: Maximum forward/reverse head of 10 meters, nominal pressure ≤0.1MPa. Operating Temperature: -20℃ to 120℃, suitable for various media such as sewage and seawater. Opening/Closing Speed: 0.2-1.5 meters per minute, supports remote control. Application ScenariosPrimarily used in municipal water supply and drainage, river cutoff, sewage treatment, industrial water treatment, and other scenarios requiring bidirectional water-stop to avoid sewage backflow risks. more>

$39

Category: Chemicals/Flavors & Fragrances/Meat Flavor Bases

Company: 郑州超凡化工有限公司

Product Description: Model: Food Grade, Industrial Grade, Feed GradePackaging: 25 kg cardboard drum (lined with polyethylene bag)Content: 99.9%Origin: Domestic/ImportedCAS: 72-18-4Form: White crystals or crystalline powderUse: Nutritional supplementBrand: Huayang[Product Name] L-Valine[English Name] L-Valine[Molecular Formula] C5H11NO2[Molecular Weight] 117.15[Product Characteristics]L-Valine appears as white monoclinic crystals or crystalline powder. When recrystallized from an ethanol-water solution, it forms colorless plate-like or flaky crystals. It is odorless with a characteristic bitter taste. Melting point is approximately 315°C. The pH of a 5% aqueous solution is 5.5~7.0. It is stable to heat, light, and air. Easily soluble in water (8.85g/100ml, 25°C), almost insoluble in ethanol. Separation from leucine is difficult. It is an essential amino acid.[Product Use] L-Valine is used as a nutritional supplement. It can be combined with other essential amino acids to prepare amino acid infusions and comprehensive amino acid preparations.[Product Functions]1. L-Valine is an essential amino acid. The daily requirement for men is 10 mg/kg (FDA/WHO, 1973). The physiological effect of the L-form is twice that of the D-form. Deficiency can lead to neurological disorders, growth arrest, weight loss, anemia, etc.2. Adding valine (1g/kg) to rice-based pastries imparts a sesame-like aroma. It also improves the flavor when used in bread.[Specification Standards]Content (on dry basis)98.5%~101.5%Heavy metals (as Pb)≤0.002%Lead≤10mg/kgLoss on drying (105°C, 3h)≤0.3%Residue on ignition≤0.1%Specific rotation [α]20D26.7°~ +29.0°1. Food: Used in dairy products, meat products, baked goods, flour-based foods, seasoning foods, etc.2. Pharmaceuticals: Health foods, fillers, pharmaceutical raw materials, etc.3. Industrial manufacturing: Petroleum industry, manufacturing, agricultural products, batteries, precision castings, etc.4. Tobacco products: Can replace glycerol as a flavoring and anti-freeze humectant for tobacco.5. Cosmetics: Facial cleansers, beauty creams, toners, shampoos, masks, etc.6. Feed: Pet canned food, animal feed, aquatic feed, vitamin feed, veterinary products, etc.[Product Packaging] L-Valine is packaged with two layers of polyethylene plastic bags inside and a cardboard round drum outside. Net content 25 kg.[Product Storage] Store L-Valine in a dry, clean, and cool place. Shelf life is two years. more>

Negotiable

Category: Chemicals/Pharmaceutical Raw Materials/Amino Acids & Derivatives

Company: 成都泰和伟业生物科技有限公司

Product Description: CAS NO:3967-21-3EC NO:223-581-4Molecular Formula:C29H46N2O6Molecular Weight:518.6853Synonyms:;5-tert-Butyl N-(benzyloxycarbonyl)-2-aminoglutarate, compound withN-dicyclohexylamine (1:1);2-{[(benzyloxy)carbonyl]amino}-5-tert-butoxy-5-oxopentanoic acid - N-cyclohexylcyclohexanamine (1:1) (non-preferred name);Z-Glu(Otbu)-Oh Dcha;Z-Glu(OtBu)-OH·DCHA;N-cyclohexylcyclohexanamine,5-[(2-methylpropan-2-yl)oxy]-5-oxo-2-(phenylmethoxycarbonylamino)pentanoic acid;Molecular Structure: more>

Negotiable

Category: Chemicals/Water Treatment Agents/Other Water Treatment Agents

Company: 北京凤礼精求医药股份有限公司

Product Description: CAS NO:70142-34-6EC NO:Molecular Formula:Molecular Weight:Synonyms:;12-HYDROXYSTEARICACID-POLYETHYLENEGLYCOLCOPOLYMER;POLYETHYLENEGLYCOL-30DIPOLYHYDROXYSTEARATE;Molecular Structure: more>

Negotiable

Category: Chemicals/Inorganic Salts/Phosphates

Company: 维赛诺化学技术（北京）有限公司

Product Description: CAS NO:62796-28-5EC NO:263-734-2Molecular Formula:C16H32N3O10PMolecular Weight:457.4131Synonyms:Phosphoric acid, mono(4-nitrophenyl) ester, compd. with 2-amino-2-ethyl-1,3-propanediol (1:2);Mono(4-nitrophenyl) phosphate 2-ethyl-2-amino-1,3-propanediol salt (1:2);p-Nitrophenylphosphate, 2-amino-2-ethyl-1,3-propanediol salt;p-Nitrophenyl dihydrogen phosphate, compound with 2-amino-2-ethylpropane-1,3-diol (1:2);4-nitrophenyl dihydrogen phosphate - 2-amino-2-ethylpropane-1,3-diol (1:2);Molecular Structure: more>

Negotiable

Category: Chemicals/Carboxylic Acids/Propionic Acid

Company: 湖南韵邦生物科技股份有限公司

Product Description: CAS NO:27280-85-9EC NO:248-386-1Molecular Formula:C13H17NO8Molecular Weight:315.276Synonyms:Conductase;2-Oxoglutaric acid, compound with 5-hydroxy-6-methylpyridine-3,4-dimethanol (1:1);2-oxopentanedioic acid - 4,5-bis(hydroxymethyl)-2-methylpyridin-3-ol (1:1);Molecular Structure: more>

Negotiable

Category: Chemicals/Water Treatment Agents/Fluoride Removal Agents

Company: 湖南韵邦生物科技股份有限公司

Product Description: CAS NO:70142-34-6EC NO:Molecular Formula:Molecular Weight:Synonyms:;12-HYDROXYSTEARICACID-POLYETHYLENEGLYCOLCOPOLYMER;POLYETHYLENEGLYCOL-30DIPOLYHYDROXYSTEARATE;Molecular Structure: more>

Negotiable

Category: Chemicals/Amines/Other Amines

Company: 海安县国力化工有限公司(临沂国力化工有限公司)

Product Description: CAS NO:8051-30-7EC NO:232-483-0Molecular Formula:C4H11NO2·Molecular Weight:Synonyms:Coconut oil diethanolamide;Coconut oil, condensed with diethanolamine;Coconut oil, diethanolamine condensate;Coconut oil, reaction product with diethanolamine;Diethanolamine, coconut oil condensate;Coconut oil diethanolamine condensateMolecular Structure: more>

Negotiable

Category: Chemicals/Heterocyclic Compounds/Triazoles

Company: 上海润栖医药科技有限公司

Product Description: CAS NO:1384956-50-6EC NO:Molecular Formula:Molecular Weight:Synonyms:Molecular Structure: more>

$2850

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: 惠州市东凌智能科技有限公司

Product Description: Low-Temperature Resistant -40°C Embedded 15-inch Touchscreen All-in-One PC with Windows 10Model: PPC-DL150EProduct Introduction:The PPC-DL150E industrial panel PC features a sheet metal chassis with a black anodized aluminum alloy surface, fanless convection cooling, and a compact design.Multiple display interfaces, supporting VGA/HDMI. Interfaces support high-level ESD protection.Supports custom wide voltage input and Phoenix connector interfaces.Supports one-click system recovery technology.Supports onboard 2GB memory.Provides 1 x RJ45 Ethernet port, gigabit adaptive.Provides 6 DB9 interfaces (supports 4RS232+2RS485 or 6RS232).Product Features:1. The front panel is made of brushed aluminum alloy, sturdy and durable, with excellent shock and impact resistance.2. Installation methods include embedded, wall-mounted, and desktop placement.3. The front panel is designed with a power switch button for convenience and comfort.4. The entire unit adopts a cable-free assembly design, consisting of a four-layer integrated industrial control motherboard stacked together, effectively overcoming use in harsh conditions such as strong vibrations and high temperatures.5. The PC supports a wide voltage input range of 9V-30V and comes with a 12V5A power adapter.6. The internal motherboard includes a PCI-E interface, allowing for the addition of 4G modules (Telecom/Unicom/Mobile), WiFi modules, GPRS modules, etc., to upgrade PC functionality.7. Total weight: 4.6kgProduct Parameters:Processor: Intel Ivy Celeron Quad-Core J1900 2.0GHz or Core seriesChipset: Intel NM70Graphics: Integrated Intel HD Graphics core GPUDisplay Output: VGA, built-in VGA pins, HDMI, LVDSMemory: 1*SO-DIMM, DDR3 1333\1066MHz, supports up to 8GBAudio: Onboard Realtek ALC662 HD audio controllerNetwork: Onboard Realtek RT8111E Gigabit Ethernet cardStorage: 2*SATAⅡExpansion Slots: 2*MINI-PCIE (for M-SATA/WIFI), 1*SIMUSB: 4*USB2.0 (rear), 4*USB2.0 (expandable)COM Ports: 6*COMRear I/O Interfaces: 4*USB2.0 ports, 1*VGA port, 1*HDMI port, 1*RJ-45 Ethernet port, 1*DC1*MIC-IN (microphone), 1*LINE-OUT (audio output)Internal I/O Interfaces: 1*30PIN LVDS, 1*12PIN VGA pins, 1*LPT pins, 6*COM/2*COM-SET1*4PIN SPEAKER, 1*6PIN INVERT, 2*USB2.0 pins (expandable to 4 USB ports), 1*GPIO pins, 1*PS/2 pins, 1*F-PANEL pins, 1*CLR_CMOS jumper, 1*AUTO-ON power-on auto-start jumper, 2*SATA-PWR pinsOperating Environment: -40~80°C; 0%~95% relative humidity, non-condensingWeight: Net weight (kg): 5.2kgGross weight (kg): 6.5kgDimensions: Overall dimensions (L×W×H): 375×302×54.7Installation dimensions (L×W): 351.4×280.4Software System Support: Windows XP, Win7, Win8, Win10, Ubuntu, Centos, etc.Power Support: DC 12VLCD Display: Type: 15.0-inch color a-Si TFT-LCDPanel Model: G150XG01 V1Resolution: 1024 (RGB) × 768Display Colors: 16.2M (6-bit + ERC)Contrast Ratio: 500:1 (Typ.) (transmissive)Viewing Angle: 70/70/65/55 (Typ.) (CR≥10) (left/right/up/down)Brightness: 400 cd/m² (Typ.)Response Time: 8.5/3.5 (Typ.) (Tr/Td) (ms)Scan Frequency: 60HzBacklight Type: LEDTouchscreen: Type: 5-wire resistive (Note: customizable)Resolution: ContinuousLight Transmittance: 80%Controller: USB interfaceDurability (touch cycles): 35 million timesRelative Humidity: 10~95% @ 40°C, non-condensingShock: 10 G peak acceleration (11 ms interval)Vibration: 10 GEnterprise Certifications: CE, FCC, ROHS more>

$电议

Category: Machinery & Equipment/Pipes & Fittings/Other Pipe Materials

Company: 安徽华宇管道制造有限公司

Product Description: C-PVC Power Conduit CPVC Orange Conduit for Cable Protection Straight and Bell-EndCustomizable Specifications | Certified Quality Products1. C-PVC Power Conduit, Cable Protection Conduit;2. MPP Power Conduit, Power Cable Protection Conduit, MPP Cable Protection Conduit. Trench and Trenchless Types, MPP Trenchless Power Conduit also known as MPP Drag Pipe;3. PVC-O Power Conduit, Biaxial Oriented PVC-O Pipe with High Compression and Impact Resistance, Cable Protection Conduit, BO Pipe;4. PVC Drainage Pipe, Power Conduit;5. Honeycomb Duct, Multi-Duct, 9-Cell Grating Pipe, Communication Pipes, Optical Cable Duct Systems;6. HDPE Pipe / Water Supply Pipe / Conduit / Drag Pipe.Huayu PipesInquiries and Orders Welcome more>

$0.13

Category: Hardware & Tools/Fasteners & Connectors/Other Fasteners & Connectors

Company: 东莞市鹏派五金有限公司

Product Description:        Combination screws are generally divided into two-piece combination screws and three-piece combination screws. Two-piece combination screws consist of a screw rod combined with either a spring washer or a flat washer; the washers can also be square washers or serrated washers. Three-piece combination screws refer to a connecting component consisting of a screw rod paired with a flat washer and a spring washer.          Common materials for combination screws include iron and stainless steel. Iron combination screws require surface treatment after production, such as electroplating. Common electroplating finishes include white zinc, nickel, color zinc, blue zinc, black oxide, black zinc, black nickel, etc. Electroplating treatments are divided into standard electroplating and environmentally friendly electroplating. The commonly used stainless steel material is SUS304. After production and processing, it can be cleaned and passivated if there is a requirement for salt spray resistance exceeding 48 hours.     Common reference standards for three-piece combination screws: 1. GB/9074.13 (Cross recessed hexagon head bolts with spring washers and flat washers combination)  2. GB/9074.17 (Hexagon head bolts with spring washers and flat washers combination)   3. GB/9074.4 (Cross pan head with spring washers and flat washers combination) 4. GB/9074.8 (Cross small pan head with spring washers and flat washers combination) 5. DIN912 (Spring washers and flat washers three-piece combination) Material: SUS-304 (A2-70) more>

Negotiable

Category: Machinery & Equipment/Compression & Separation Equipment/Air Receiver Tanks

Company: 自贡自泵球阀水泵有限公司

Product Description: 自贡自泵水泵ZIS或ZDLF或ZISG或ZIH或ZN泵ZSMS用弹簧式机械密封件机械密封产品属于特殊品，根据材质的不同，尺寸的不同、结构形式的不同，采购数量的不同，价格都随之改变。机械密封可以根据您的样品测绘订制。所以您咨询或选购我们的产品之前，请告知准确的泵型、轴径、机封安装尺寸等参数。上述价格为参考价格，不同型号的价格有所不同，同时，该产品为定制产品，有一个生产周期，交货期也有所不同。因此具体型号的价格和货期，请来电咨询。ZSMS简易机械密封主要部件：动环、静环、冷却装置和压紧弹簧(视具体设备而定)。ZSMS弹簧式机械密封辅助密封圈： O形、X形、U形、楔形、矩形柔性石墨、PTFE包覆橡胶O圈等。ZSMS简易机械密封轴径：15mm~120mm more>

Negotiable

Category: Machinery & Equipment/Commercial Equipment/Smart Card Management Systems

Company: 自贡自泵球阀水泵有限公司

Product Description: Split-case Pump in Circulation Pump The above prices are for reference only; prices vary by model. Please call for specific pricing. Mechanical products are customized, and delivery times are subject to negotiation.Structural Features: Single End Face Unbalanced Type 2Cr13 304 316 OptionalCeramic Alloy Silicon Carbide Optional Auxiliary Seal: Fluoro Rubber Pressure: Temperature: 180℃Pump Type: Double Suction Centrifugal Pump Split-case Pump Common Double Suction Pump Models more>

Negotiable

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

Company: Taizhou Kaiqiu Drilling Tools Co., Ltd.

Product Description: Quick Details Place of Origin: Zhejiang, China Brand Name: KAIQIU Type: DTH hammer Machine Type: Drilling Tool Certification: API Material: Carbon Steel Processing Type: Forging Use: Well Drilling Color: Yellow or customize Working pressure: 12-24bar Usage: Ore Mining, water well drilling, quarrying Packing: Carton/wooden carton more>