Negotiable

Category: Chemicals/Heterocyclic Compounds/Oxazole

Company: Hangzhou Read Chemical Co., Ltd.

Product Description: CAS NO:116649-85-5EC NO:Molecular Formula:C21H21FN2O4SMolecular Weight:416.4658Synonyms:;3R-[[(4-Fluorophenyl)sulfonyl]amino]-1,2,3,4-tetrahydro-9H-carbazole-9-propanoic acid;3-[(3R)-3-{[(4-fluorophenyl)sulfonyl]amino}-1,2,3,4-tetrahydro-9H-carbazol-9-yl]propanoic acid;Molecular Structure: more>

Negotiable

Category: Chemicals/Heterocyclic Compounds/Imidazole

Company: Hangzhou Read Chemical Co., Ltd.

Product Description: CAS NO:1231930-33-8EC NO:Molecular Formula:C11H12BrFN2Molecular Weight:271Synonyms:;6-Bromo-4-fluoro-2-methyl-1-(1-methylethyl)-1H-benzimidazole;Molecular Structure: more>

Negotiable

Category: Chemicals/Heterocyclic Compounds/Piperazine

Company: Hangzhou Read Chemical Co., Ltd.

Product Description: CAS NO:763111-47-3EC NO:Molecular Formula:Molecular Weight:Synonyms:Molecular Structure:CAS NO:763111-47-3EC NO:Molecular Formula:Molecular Weight:Synonyms:Molecular Structure: more>

Negotiable

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: Hangzhou Read Chemical Co., Ltd.

Product Description: CAS NO:153851-71-9EC NO:Molecular Formula:C5H8ClN3SMolecular Weight:177.6551Synonyms:;6,7-dihydro-6-mercapto-5h-pyrazolo[1,2-a][1,2,4]triazolium chloride;6,7-dihydro-6-mercapto-5H-pyrazolo[1,2-a][1,2,4]triazol-4-ium,chloride;Side Chain For Biapenem;5H-Pyrazolo[1,2-a][1,2,4]triazol-4-ium,6,7-dihydro-6-mercapto-,chloride;Side Chain for Bisapenem;6-sulfanyl-6,7-dihydro-5H-pyrazolo[1,2-a][1,2,4]triazol-4-ium chloride;Side chain of biapenem;Biapenem side chains;6,7-dihydro-6-mercapto-5h-pyrazolo(1,2-a)(1,2,4)triazol-4-ium chloride;BIAPENEM SIDE CHAIN;Molecular Structure: more>

Negotiable

Category: Chemicals/Chemical Intermediates/Methyl Compounds

Company: Hangzhou Read Chemical Co., Ltd.

Product Description: CAS NO:302543-62-0EC NO:Molecular Formula:C18H19N3O3S·HClMolecular Weight:393.89Synonyms:;ROSIGLITAZONE HYDROCHLORIDE 99%;Rosiglitazone hydrochloride;Rosiglitazone HCL;Molecular Structure: more>

Negotiable

Category: Chemicals/Heterocyclic Compounds/Piperazine

Company: Hangzhou Read Chemical Co., Ltd.

Product Description: CAS NO:763114-04-1EC NO:Molecular Formula:Molecular Weight:Synonyms:Molecular Structure:CAS NO:763114-04-1EC NO:Molecular Formula:Molecular Weight:Synonyms:Molecular Structure: more>

Negotiable

Category: Chemicals/Heterocyclic Compounds/Indole

Company: Hangzhou Read Chemical Co., Ltd.

Product Description: CAS NO:2212021-79-7EC NO:Molecular Formula:Molecular Weight:Synonyms:;5-[(4S)-2,2-dimethyloxan-4-yl]-N-methyl-N-phenyl-1H-indole-2-carboxamide;N -Methyl-N -phenyl-5-[(4S )-tetrahydro-2,2-dimethyl-2H -pyran-4-yl]-1H -indole-2-carboxamide;(S)-5-(2,2-dimethyltetrahydro-2H-pyran-4-yl)-N-methyl-N-phenyl-1H-indole-2-carboxamide;Molecular Structure: more>

Negotiable

Category: Chemicals/Heterocyclic Compounds/Imidazole

Company: Hangzhou Read Chemical Co., Ltd.

Product Description: CAS NO:2212021-61-7EC NO:Molecular Formula:Molecular Weight:441.5Synonyms:Molecular Structure: more>

Negotiable

Category: Others

Company: 北京泰格瑞德科技有限公司

Product Description: Beijing Tigerade Technology Co., Ltd. is a source manufacturer of RFID readers. Our self-developed main products include RFID readers, antennas, and tags. Based on our core foundational products, we have developed several application systems, including the RFID Smart Warehouse System, SPD Medical Consumables Smart Supply Chain System, RFID Smart Archives System, RFID Smart Library System, RFID Smart Equipment Cabinet System, and RFID Smart Vending Cabinet (Prepared Meal Smart Vending Cabinet) System. These six systems are currently the most widely applied system products in our company's market. RFID technology is a technology that speeds up processes and reduces errors, helping users enhance the intelligence level of traditional industries, lower costs, improve efficiency, and reduce errors, omissions, and leaks. We welcome opportunities for collaboration and mutual development. Contact: Mr. Zheng Phone: 18910122958 more>

$400

Category: Others

Company: 深圳合众致达科技有限公司

Product Description: Photoelectric Direct Reading Remote Water Meter      　　Hezhong Zhida photoelectric direct reading water meter uses photoelectric direct reading technology to directly read the digit wheel data. Compared with traditional pulse water meters, it reduces reading errors to zero, making it an electronic remote water meter with zero electromechanical conversion error in automatic meter reading systems. It features a low-power design, requiring no power supply during normal operation, and only needs power during meter reading.   Product Features: This series of remote water meters adopts a dry structure.   1. Complies with the "Electronic Remote Water Meter" (CJ/T224-2012) standard;(CJ/T224-2012) standard; 2. Complies with the national standard "Cold Drinking Water Meters and Hot Water Meters" (GB/T778.1    3-2007); 3. Working power supply: DC9-15V (RS485); DC24-42V (M-BUS); 4. Uses advanced data encoding and verification methods, ensuring high communication reliability; 5. Meets the technical requirements for electromagnetic compatibility of electronic products such as EMC, ESD, EMI, and is at a relatively high industry level; 6. Communication protocols: DL/T645, CJ/T188, MODBUS, industry-standard general protocols; 7. Communication interfaces: a) RS485 fieldbus, b) M-BUS fieldbus; 8. Communication transmission rate: 1200bps/2400bps. 9. Easy to read, maintaining clarity for a long time; 10. Uses photoelectric encoding and energy-free direct reading technology; 11. Uses non-contact sensors, not affecting water meter performance; 12. Uses low-power design, requiring power only during reading; 13. Can form a system with an upper computer to achieve remote reading and meter reading.   Product Caliber:     Model Caliber 15E-40E (Direct Read) 15-40mm 50E-500E (Direct Read) 50-500mm 50WS-200WS 50-200mm 15E-25E (Direct Read) 15-25mm       Usage Conditions: Water temperature≤30℃ (Cold water meter) Water temperature≤90℃ (Hot water meter) Water pressure≤1Mpa, water meter cannot be immersed in water.   Signal Type Electrical encoding passive direct reading technology, supportsDL/T 645, CJ-T188, MODBUS, industry-standard or user-specified communication protocols; communication transmission distance: 300M; communication transmission rate: 1200BPS, 2400BPS.   Permissible Error: 1. The permissible error in the low flow range from including flow (Q1) to excluding the transitional flow (Q2) is ±5%. 2. The permissible error in the high flow range from including flow (Q2) to including overload flow (Q4) is ±2% (cold water meter), ±2.5% (hot water meter).     Flow Parameters:   Water Meter Model Accuracy Class Overload Flow Q4 Permanent Flow Q3 Transitional Flow Q2 Minimum Flow Q1 Cubic Meters/H LXSY-15 Class 2 3.125 2.5 0.05 0.03 LXSY-20 Class 2 极速飞艇 5.00 Class 2 20.00 16 0.32 0.2 LXSY-50 more>

Negotiable

Category: Others

Company: 成都华信万通科技有限公司

Product Description: Features of Photoelectric Direct-Read Water Meters1. Accurate Reading: Real-time readings at any moment are consistent with the mechanical display of the water meter. No built-in or backup power supply is required, ensuring no data loss due to power outages or network failures.2. Long Service Life: Utilizes photoelectric sensing technology for sampling, with no mechanical contact or movement, making it immune to failures caused by vibrations from pipelines or other factors.3. Strong Anti-Interference Capability: Contains no magnetic components, ensuring no interference from ferromagnetic materials or vibrations caused by pipelines or other factors.4. Safe to Use: The meter employs low-voltage circuits for communication. High-voltage power sources are physically isolated from the water meter, with high insulation strength ensuring safety.5. Easy Installation: The base meter of the direct-read water meter shares the same installation specifications as ordinary mechanical water meters, making installation straightforward.6. Reliable Valve Switching: Internally uses a waterproof gear reducer with a 3500:1 reduction ratio and all-metal gears, providing high torque and reliability. It can open and close valves normally under 1.0 MPa water pressure, avoiding valve switching failures caused by scaling in ball valves (common in valve-controlled water meters).Advantages Compared to Traditional Card-Based Meters1. Eliminates the difficulty of door-to-door meter reading and reduces the need for numerous meter readers. Addresses issues with IC card management, such as multiple card vending software, counterfeit cards, and fake cards, simplifying management. Key advantage: "Remote Meter Reading."2. Solves inaccurate meter reading issues. Key advantage: "Direct Reading."3. Resolves complex wiring problems. Key advantage: "M-BUS Wiring."4. Eliminates the need for 24-hour power supply, data loss after power outages, and short backup battery life. Key advantage: "No Power Supply Required for the Meter."5. Reduces the number of data collectors and maintenance workload, and eliminates the need for external power supply. Key advantage: "Manual Centralized Meter Reading Without External Power Supply." more>

Negotiable

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: 深圳市国宇源创科技有限公司

Product Description: Introduction more>

Negotiable

Category: Instruments & Meters/Specialized Instruments/Paper Test Instruments

Company: 泰安市九方矿山设备有限公司

Product Description: CCZ1000 Direct-Reading Dust Concentration Meter- CCZ-1000 Direct-Reading Dust Concentration Meter is a newly designed instrument for measuring dust concentration in ambient air, developed in accordance with MT163-1997 "General Specifications for Direct-Reading Dust Concentration Measuring Instruments." It is suitable for industrial and mining enterprises to detect coal dust and other types of dust.This instrument utilizes processor technology, enabling fast processing of collected data and strong anti-interference capabilities, significantly improving detection accuracy. It can also store up to 50 test records in chronological order. The instrument consists of a Chinese display screen, an air pump, a dust concentration detection circuit, an under-voltage protection display, and a power supply. Equipped with a dust trap, it can capture respirable dust concentration, with separation efficiency meeting the "BMRC" curve standard. The instrument supports both automatic and manual sampling modes to accommodate different detection standards. Designed with an ExibI (150°C) structure, it is suitable for use in coal mines and other hazardous gas environments.1. Dust Concentration Measurement Range: 0.1 mg/m³ to 1000 mg/m³2. Relative Error in Dust Concentration Measurement: ±15%3. Relative Stability Error: ±2.5%4. Sampling Flow Rate: 2.0 L/min5. Sampling Flow Rate Error: ≤2.5%6. Sampling Flow Rate Stability: ≤±5%7. Sampling Efficiency: Complies with the "BMRC" Sampling Efficiency Curve8. Power Supply: Utilizes Ni-MH nickel-metal hydride batteries, 2.3 A/h, 6 cells in series with 4 current-limiting resistors of 0.51 Ω/10W, encapsulated in epoxy resin and housed in a battery box. Rated voltage Ue: 7.2V; Output voltage U0: 8.4V; Output current I0: 3.0A, forming an intrinsically safe battery assembly.9. Operating Voltage: 6.0V to 8.4V; DC (Intrinsically Safe)10. Operating Current: ≤100 mA11. Type: Mining Intrinsically Safe Type more>

Negotiable

Category: Machinery & Equipment/Compression & Separation Equipment/Screw Compressors

Company: 天津市天伟悦龙计算机维修服务中心

Product Description: The full name of a USB flash drive is USB flash drive, which is a portable storage device with many advantages. The disadvantage is that problems can occur unexpectedly, leaving us at a loss. If there is no important data, it's fine, but if there is important data, many questions arise, such as: Can the lost data on a USB drive be recovered? How much does USB data recovery generally cost? Can data be recovered if the USB drive is not recognized? Can data be recovered after formatting a USB drive? For these issues, everyone can consult Tianwei Data Recovery Center. For data recovery, you can also turn to Tianwei. Tianwei's scope of USB data recovery includes:1. Recovery of lost data stored on a USB drive.2. Data recovery after a USB drive is infected by a virus.3. Recovery of important files when a USB drive cannot be read.4. Repair of damaged data files on a USB drive.5. Data recovery for unrecognized Kingston USB 3.0 drives.6. Data recovery for Aigo USB drives that show no response when plugged into a computer.7. SanDisk USB data recovery. Precautions for using USB drives regarding hot-swapping: Avoid unplugging arbitrarily. Although USB drives support hot-swapping, it is recommended not to unplug them directly. Most users are already aware of this and know to right-click the drive icon in the operating system and select "Eject." However, sometimes due to misoperation, the hardware may not be properly uninstalled. It is advisable to repeat this operation a few times. If it still cannot be ejected, shut down the computer before unplugging. Tianwei Address: Rooms 607 and 609, Bainaohui Technology Building, Anshan West Road, Nankai District. SD card data recovery: www.tjshuju.cn Tianjin data recovery: www.tjtianwei.com more>

$面议

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: 深圳市华翔天诚科技有限公司

Product Description: more>

$300

Category: Others

Company: 天津市天伟悦龙计算机维修服务中心

Product Description:        Customer asks: Can data be recovered after repartitioning a solid-state drive?       Tianwei Data Recovery Center answers: The success rate of solid-state drives is indeed not as high as that of mechanical hard drives. However, once data loss, deletion, or unrecognized issues occur, shut down immediately for recovery. The more attempts made, the lower the recovery probability.       Tianwei Data Recovery Center Solid-State Drive Data Recovery scope: Recovery of deleted files, 1T NVME hard drive data recovery, unrecognized NVME solid-state drive data recovery, Kingston solid-state drive data recovery, SSD solid-state drive data recovery, M.2 solid-state drive data recovery, computer solid-state drive not displaying data recovery, 2.5-inch solid-state drive not showing data recovery, Lexar solid-state drive not displaying data recovery, Teclast solid-state drive data recovery, unable to read hard drive due to I/O device error data recovery, computer not booting after inserting hard drive but working after removal data recovery, solid-state drive prompting formatting data recovery, recovery of deleted files, etc. Data rescue address: Room 607, 6th Floor, Bainaohui Technology Building, Anshan West Road, Nankai District, Tianjin.       When using a new hard drive for the first time, it needs to be initialized, including partitioning and formatting. These steps help you use the hard drive more effectively and ensure data security. Below are some steps on how to partition a new hard drive:1. Disk Management: Right-click on the formatted disk and select "New Simple Volume."2. Allocate Space: In the pop-up window, choose the size of the hard drive partition as needed and click "Next."3. Formatting: Select the appropriate file system and click "Next" to start formatting the new partition. After formatting is complete, click "Finish" to end the partitioning process.       Portable hard drive data recovery: www.twshuju.com.cn       USB flash drive data recovery: www.tjsjhf.com.cn more>

$1500

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: 烟台乐森机械设备有限公司

Product Description: Due to fluctuations in raw material prices, the prices and models may vary. For specific quotations, please contact our sales staff. Thank you.Exactly, every line in the manual contains many usage details. Read it a few more times, and you'll know which knob adjusts the oxygen, which tube connects to the mask, and when to press the negative pressure button... Keep these details in mind so that when the time comes, your hands won't shake, and your steps won't falter, allowing the resuscitator to perform its function quickly. How to use an automatic resuscitator?The automatic resuscitator is a rescue device that provides artificial respiration through positive and negative pressure and oxygen delivery functions. It is mainly used for victims whose breathing has stopped due to poisoning, suffocation, drowning, or trauma, and is widely applied in mining, chemical, and rescue fields.MZS-30 Automatic Resuscitator Product Parameters:Oxygen cylinder working pressure: 20MPaOxygen cylinder water volume: 1LAutomatic lung inflation pressure: 1.77～2.45 kPa (when oxygen input is 6L/min)Automatic lung suction pressure: -1.47～-1.96kPa (when oxygen input is 6L/min)Automatic lung inflation safety valve opening pressure: 2.70～3.20kPa (when a stable airflow of 15L/min is introduced into the inflation safety valve)Automatic lung suction safety valve opening pressure: -2.20～-2.70kPa (when a stable airflow of 15L/min is introduced into the suction safety valve)Suction bottle suction pressure should be ≤-59kPa (when a stable oxygen input of 6L/min is provided)Those parameters printed in the manual are not just cold numbers—the 20MPa cylinder pressure is the confidence that locks the oxygen securely; the 12-16 breaths per minute ventilation rate is the protection that aligns with breathing;Shanxi automatic resuscitator price, MZS-30 automatic resuscitator images, introduction to automatic resuscitator usage methods, mining automatic resuscitator manufacturers, automatic resuscitator performance characteristics. Only through familiarity can one achieve skill; only with skill can one save lives. This manual should be treated as a "life-saving handbook." more>

$180

Category: Instruments & Meters/Specialized Instruments/Meteorological Instruments

Company: 烟台乐森机械设备有限公司

Product Description: Due to fluctuations in raw material prices, the specific models and prices may vary. For detailed quotations, please contact our sales staff. Thank you.Mechanical and electronic anemometers offer multiple functions. Mechanical wind cups or impellers "race" with the wind—their rotation speed indicates wind velocity. Electronic models display readings digitally on a screen, eliminating the need to interpret scale markings. Handheld anemometers can also store data and track trends, making it easy to assess ventilation effectiveness with a single measurement.This instrument measures average wind speed and is primarily used for monitoring average wind speed in coal mine underground environments. It is also suitable for wind speed measurement in other settings such as construction, chemical engineering, textiles, grain storage, and aerodynamic research.Main Technical SpecificationsModels: CFJ5, CFJ10, CFJ25Measuring Range (m/s): 0.3–5  0.5–10  0.8–25Starting Wind Speed (m/s): 0.2  0.4  0.6Wind Speed Deviation (m/s): 0.15  0.15  0.25Dimensions: Ф70×39mmMain Features1. Compact size, lightweight, simple structure, and easy to use.2. All steel components undergo heat treatment and polishing to ensure instrument accuracy and durability.3. Measuring Range: 0.5–10 m/s4. Starting Wind Speed: ≤0.4 m/sThis device is easy to operate and provides accurate data. Designed for complex underground environments, it remains stable under harsh conditions such as high humidity and high dust, ensuring uninterrupted wind speed monitoring in special areas like blind roadways and goaf edges. more>

$面议

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: 深圳市华翔天诚科技有限公司

Product Description: The HX630 series is a 125KHz low-frequency module series designed for read-only EM4100/TK4100 and their compatible cards. It can read and output the CSN card number. Output formats such as Wiegand26/34, TTL, or RS232 are available. It can be embedded into access control systems, attendance applications, elevator control systems, parking lots, barriers/speed gates, handheld terminals, tablet terminals, smart gaming machines, and various smart terminal devices.It shares the same dimensions and pin definitions as the HX880 series (13.56MHz) module, allowing for direct hardware replacement.Key Features:125KHz operating frequencyCompact size for easy integrationReads only CSN card numbersMultiple output formatsTechnical Parameters:Model: HX630Operating Frequency: 125KHzSupported Cards: EM4100 cards and their compatible variantsInterface: Wiegand26/34, TTL, RS232Power Supply: 5VSensing Distance: 0~10cm (depending on tag size, manufacturing process, and coil)Operating Temperature: -10℃~50℃Coil: External, multiple specifications availableModule Dimensions: 39mm * 19mm * 9mmModel Description:Model: InterfaceHX630-W: Widgand26HX630-G: Widgand34HX630-T: TTLHX630-S: RS232Pin Description:Typical Applications:Access ControlAttendance SystemsElevator ControlParking LotsBarriers/Speed GatesHandheld TerminalsTablet TerminalsSmart Gaming MachinesVarious Smart Terminal Devices more>

$59.9

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: 深圳市华舜检测技术有限公司

Product Description: A batch of chemical products exported to Europe and America was detained by customs due to missing MSDS. Cross-border sellers must read: MSDS/SDSA batch of chemical products exported to Europe and America was detained by customs due to missing MSDS... Cross-border sellers must read: A complete analysis of MSDS/SDS—The "safety key" to entering the European and American marketsA batch of chemical products exported to Europe and America was detained by customs due to missing MSDSAmazon delisted products because the SDS format did not comply with GHS standardsAs a cross-border seller, have you also been overwhelmed by such issues? MSDS/SDS is not only a "pass" for product safety but also a "door opener" for market access in Europe and America. This article provides an in-depth analysis of its core points and compliance strategies.1. What exactly are MSDS/SDS?DefinitionMSDS (Material Safety Data Sheet): Material Safety Data Sheet, an older term (still used in the United States).SDS (Safety Data Sheet): Safety Data Sheet, the new term under the United Nations GHS standard, universally applicable.Core FunctionsLegally mandatory requirement: Required by European and American customs, e-commerce platforms, and offline channels.Safety information hub: Covers the entire lifecycle management of chemical composition, hazards, transportation/storage/disposal guidelines, etc.Liability avoidance: Compliant SDS can reduce the risk of litigation for enterprises due to safety incidents.2. Four key differences between MSDS and SDS3. Key compliance points for SDS in the European and American markets (Must-read for cross-border sellers)European market (REACH/CLP regulations)Must include EU EC number and Exposure Scenario (ES) information.Mixtures must be classified according to CLP regulations, with H phrases/P phrases labeled (e.g., H318 "Causes serious eye damage").American market (OSHA standards)Must indicate HMIS/NFPA hazard level identifiers (health/flammability/reactivity ratings).If containing carcinogens, reference must be made to the NTP or IARC list for declaration.Canada (WHMIS 2015)Mandatory bilingual version (English + French).Must include Canada-specific hazard classifications (e.g., Biohazardous Infectious Materials).Typical case: A Chinese seller exporting glue to Germany was forced to return the product due to unlabeled SVHC (Substances of Very High Concern), resulting in losses exceeding 100,000 euros.4. How can enterprises quickly obtain compliant SDS?Self-preparationApplicable scenarios: Enterprises with professional teams and simple product compositions.Risk warning: Requires real-time tracking of regulatory updates (e.g., the EU adds new SVHC substances annually).Third-party testing and certification servicesEnsure compliance with local language requirements (e.g., SDS in France must be in French).Provide transportation classification reports (TDG/IATA/IMDG codes).Address supply chain audits (essential for major buyers like Walmart and IKEA during factory inspections).Reasons for recommendation:Cost comparison: The hidden costs of self-preparation (labor + time) often exceed the fees of third-party services.5. Frequently asked questions by cross-border sellersQ: If the product does not contain hazardous chemicals, is SDS unnecessary?A: Incorrect! Ordinary products (e.g., batteries, alcohol-containing cosmetics) may be classified as "hazardous goods" and require professional judgment.Q: How long is the validity period of SDS? How to update it?A: There is no fixed validity period, but changes in composition/regulations require updates within 30 days (e.g., revisions to EU CLP).Q: Can SDS issued by Chinese institutions be recognized in Europe and America?A: It is necessary to confirm whether the institution has GLP laboratory qualifications and authorization from the target country (e.g., EU ECHA registration number).Conclusion:A seemingly simple SDS reflects a complex global chemical management system. Choosing a professional compliance partner ensures your products safely enter Europe and America, avoiding the risk of "stepping on landmines." more>