$300

Category: Computer Hardware & Software

Company: 天津市天伟悦龙计算机维修服务中心

Product Description:        Tianwei Data Recovery Center is an 18-year professional Tianjin data recovery team, specializing in solving various data recovery issues. Whether it's software recovery or hardware recovery, we handle it with ease. For data recovery needs, come to Tianwei Data Recovery Center. Our areas of expertise include:(1)Data recovery after erasing data on Apple computers.(2)Data recovery when the hard drive is not showing up on the computer.(3)Data recovery for unrecognized hard drives with no partitions or capacity.(4)Data recovery for slow or frozen Tianjin computers.(5)Data recovery for hard drives that do not power on, do not spin, or have short-circuited circuit boards, or Tianjin hard drive repair.(6)Data recovery for external hard drives or USB drives prompting formatting.(7)Chip-level data recovery for USB drives that show no response when plugged into a computer.(8)Recovery company for digital camera SD cards, TF cards, and CF cards.        Hard Drive Usage Knowledge and Precautions:1. Internal computer hard drives can also be turned into external hard drives by purchasing a hard drive enclosure.2. Desktop hard drives need to be partitioned to facilitate user management and rational use of hard drive space.3. If the hard drive is unusable, you can use Windows Data Guardian for diagnosis.4. If the computer cannot display the hard drive, it may be due to a damaged SATA cable; try replacing the data or power cable.5. If the external hard drive drive letter does not appear, check if it exists in the Disk Management page.6. Important data is recommended to be stored on mechanical hard drives, as the recovery probability for solid-state drives is lower.       Address of Tianwei Data Recovery Service Center in Tianjin: Rooms 605 and 607, 6th Floor, Bainaohui Technology Building, Anshan West Road, Nankai District, Tianjin.       Tianjin Server Data Recovery: www.tjshuju.com.cn       Tianwei Data Recovery Pricing: www.twshuju.com more>

Negotiable

Category:

Company: 自贡自泵球阀水泵有限公司

Product Description: Zigong Valve Ball Valve WQ61 or WQ367 Zero External Leakage Fully Welded Ball Valve Butt Weld Connection Ball Valve Can Be Equipped with Sleeve PipeBefore inquiring or purchasing, users are requested to provide accurate parameters such as caliber, pressure, connection method, operation method, main body material, etc. more>

Negotiable

Category: Environment Industry

Company: 杭州新蓝能源工程有限公司

Product Description: Working Principle: Generating high-temperature hot water from low-temperature hot water involves using a small amount of high-temperature heat source to extract heat from a low-temperature heat source, producing a large amount of utilizable medium-temperature thermal energy. In other words, it utilizes high-temperature thermal energy to drive the process, elevating the thermal energy from the low-temperature heat source to a medium temperature, thereby improving the efficiency of thermal energy utilization.Application Scope:1) Utilizable waste heat: Generally, waste hot water at temperatures between 10°C and 70°C, single or multi-component gases or liquids can be used;2) Provided heat medium: A heat medium approximately 40°C higher than the waste heat source temperature, not exceeding 120°C, can be obtained;3) Driving heat sources: 0.1–0.8MPa steam, natural gas combustion, or high-temperature flue gas;4) Heating COP between 1.6–2.4: This means that using 1MW of driving heat source can yield over 1.6MW of heat required for production and daily life;Note: Dual-effect heat pumps can achieve a COP of around 2.4, but the temperature of the produced hot water does not exceed 60°C, and steam pressure must be above 0.4MPa;5) Higher inlet and outlet temperatures of waste hot water result in higher heat medium temperatures and greater efficiency.System Advantages: This system efficiently utilizes low-temperature hot water to produce high-temperature hot water, has a wide range of applications, saves costs, reduces energy consumption, and creates maximum benefits for enterprises. more>

$900

Category: Electrical & Electronics

Company: 南阳首安防爆电气有限公司

Product Description: The main function of an explosion-proof maintenance box is to inspect circuits and provide temporary power. It is primarily used in flammable and explosive environments, with its core purpose being circuit maintenance. In terms of material, explosion-proof maintenance boxes are mainly made of aluminum alloy and feature a composite structure, consisting of two chambers: an explosion-proof chamber and an increased safety chamber. The explosion-proof chamber contains miniature circuit breakers or molded case circuit breakers for controlling circuits under maintenance, while the increased safety chamber mainly houses terminal blocks, indicator lights, or sockets. From the components inside and on the panel of the explosion-proof maintenance box, it is easy to discern its functions.Firstly: The explosion-proof maintenance box can control circuits requiring maintenance, thus possessing the function of controlling lines. Secondly: The increased safety chamber is equipped with indicator lights, which clearly show which circuit is in operation. Thirdly: The panel of the increased safety chamber is fitted with explosion-proof sockets, primarily used to connect equipment needing maintenance. With its composite structure and the ability to connect and control maintenance equipment via switches, indicator lights, and explosion-proof sockets in the explosion-proof chamber, we can assess the condition of the equipment through circuit control. Therefore, the explosion-proof maintenance box is specifically designed for use in flammable and explosive environments to test equipment functionality. It is tailored for convenient maintenance and is highly useful for maintaining switch power supplies.The structure of the explosion-proof maintenance box includes an aluminum alloy shell formed by aluminum die-casting or steel plate welding, with a high-voltage electrostatic powder-coated surface. It features power sockets to facilitate maintenance power supply, a modular structure allowing various control circuits to be freely assembled as needed, conduit or cable wiring, and may include a main switch. The effectiveness of the explosion-proof maintenance box lies in its overload and overcurrent protection functions, as well as its leakage protection capability. more>

$面谈

Category: Chemicals

Company: 陕西圣瑞医药科技有限公司

Product Description: Pharmaceutical Grade Ammonium Chloride National Drug Standard API Pharmacopoeial Grade Ammonium Chloride CDE Registered for Preparations with Content Above 99%Ammonium Chloride is a commonly used pharmaceutical active ingredient widely applied in medical, food, and industrial fields. As a medication, it is often used as an expectorant to help stimulate bronchial fluid secretion, making phlegm easier to expel. Additionally, ammonium chloride is clinically used to treat metabolic alkalosis and serves as an acidifying agent in injections and pharmaceutical preparations to adjust pH. In pharmaceutical-grade applications, ensuring the purity and quality of ammonium chloride meets the standards of the "2020 Edition of the Chinese Pharmacopoeia" is crucial for guaranteeing its efficacy and safety.Pharmaceutical Grade Ammonium Chloride Chinese Pharmacopoeia Quality Standards:1. Appearance and CharacteristicsAmmonium chloride should be a colorless or white crystalline powder or granules with a slightly salty taste and a cooling sensation. Its appearance should be clean, dry, and free of any visible impurities or foreign matter to ensure safety and effectiveness in use.2. IdentificationIdentification methods for ammonium chloride include:- Chloride Ion Identification: Testing the ammonium chloride solution with reagents should produce a white precipitate, soluble in dilute nitric acid, indicating the presence of chloride ions.- Ammonium Ion Identification: Under the action of sodium hydroxide, the ammonium chloride solution releases ammonia gas, turning moist red litmus paper blue, indicating the presence of ammonium ions.3. AssayThe pharmacopoeia stipulates that the effective content of ammonium chloride should be between 99.0% and 100.5% (calculated on a dried basis), determined by titration to ensure the stability of its efficacy. The assay is a key step in ensuring that pharmaceutical-grade ammonium chloride meets quality standards.4. Acidity and Alkalinity (pH Value)The pH value of the ammonium chloride solution (1% aqueous solution) should be between 4.6 and 6.0. This pH range helps maintain its stability and adaptability to various pharmaceutical formulation requirements.5. Loss on DryingThe moisture content of ammonium chloride must not exceed 0.5%. The loss on drying test is used to detect the content of volatile substances, such as moisture, to ensure stability during storage and use.6. Residue on IgnitionThe pharmacopoeia stipulates that the residue on ignition (i.e., ash content) of ammonium chloride must not exceed 0.1%, ensuring that the content of inorganic impurities remains within acceptable limits.7. Heavy Metal ContentThe heavy metal content in ammonium chloride must be below the pharmacopoeia-specified limit (generally not exceeding 10 ppm) to prevent adverse effects on human health from heavy metal contamination.8. Arsenic Salt ContentAs a toxic element, the arsenic content in ammonium chloride must be below 2 ppm to comply with drug safety standards.Pharmaceutical Grade Ammonium Chloride National Drug Standard API Pharmacopoeial Grade Ammonium Chloride CDE Registered for Preparations with Content Above 99%As an important pharmaceutical active ingredient, the quality of ammonium chloride must strictly comply with the standards of the Chinese Pharmacopoeia to ensure its safety and effectiveness in medical applications. Shaanxi Mingcheng Pharmaceutical Co., Ltd., with its professional technology and stringent quality management, provides high-quality ammonium chloride APIs and other pharmaceutical excipients to the domestic and international pharmaceutical industry, helping customers enhance the quality and efficiency of their drugs. The company consistently adheres to the principles of innovation and quality, continuously offering superior API solutions to the global pharmaceutical market. more>

$4800

Category: Chemicals

Company: 深圳市龙华新区文乔阳贸易商行

Product Description: 废油液相脱色常温脱色剂免酸碱脱色去味黑油变白变黄用途和特点：本产品主要用于废油液相脱色、除臭等。本产品是以先进的工艺经碳化和高温水蒸汽活化及化学处理而成。TS型脱色剂比表面积大，活性高，微孔发达，脱色力强。操作方法：把脱色剂按一定比例（根据油品确定添加量）加入到油品中，然后匀速搅拌，搅拌一段时间后，静置。注意事项：在运输或储存过程中注意防水，防潮，防火，不准与有害物品直接接触，存放的空间不得长期有有害气体成份。以防变质、着火、吸收有害物质而报废或发生其它事故。联系电话：13954221732真诚期待与您合作！ more>

$询价

Category: Metallurgy & Minerals

Company: 东莞市匡合电子科技有限公司

Product Description: Cross-border AttributesCross-border Package Weight: 0.01kgUnit Weight: 0.01kgProduct Dimensions: 21cm * 29cm * 16cmProduct AttributesWorkpiece Material: 304, 301, 201Item Number KuangheWorkpiece Type: Precision FiltrationProcess Type: Chemical EtchingProcessing Trade Form: Processing According to Provided DrawingsPrototyping Cycle: 1-3 DaysProcessing Cycle: 8-15 DaysMaximum Annual Processing Capacity: 1 Million (Pieces)Annual Remaining Processing Capacity: 300,000 (Pieces)Brand: Kuanghe Manufacturing more>

$询价

Category:

Company: 东莞市匡合电子科技有限公司

Product Description: Product Name: Glass Code DiscProduct Material: Float glass, K9 glass, ultra-clear glass, etc.Standard Thickness: 0.7mm, 1.0mm, 1.1mm, 2.0mm, 3.0mmProcess Advantages:1. Pulse lines are uniform, vertical, and smooth, with no disconnections or breaks;2. High precision, no limit on pulse count, minimum line size can be as small as 0.006mm;3. Small tolerance can reach 0.2 microns;4. Excellent thermal stability, extremely high mechanical strength and pressure resistance;5. Good cleaning effect, reusable, long lifespan, wide range of applications;Precision: Tolerance ±0.0002mm (i.e., 0.2 microns), industry standard;Delivery Time: Standard sampling 30 days, delivery 40 days.Application: A digital encoder for measuring angular displacement. It offers strong resolution, high measurement accuracy, and reliable performance, making it a commonly used displacement sensor for measuring shaft rotation angle.A code disc (grating disc) is a circular plate with evenly spaced rectangular apertures. Since the photoelectric code disc is coaxial with the motor, when the motor rotates, the code disc (grating disc) rotates at the same speed. The detection device, composed of electronic components such as light-emitting diodes, detects and outputs several pulse signals. By calculating the number of pulses output by the photoelectric encoder per second, the current motor speed can be determined. more>

Negotiable

Category: Metallurgy & Minerals/Magnetic Materials

Company: Hebei Dingnuo Equipment Co., Ltd.

Product Description: ECP-01-CC Casting ESP Cable Protector – Cross Coupling Common Specification of Cross Coupling Casting ESP Cable Protector for Flat Channel Tubing O.D. (A) Coupling Specification Running O.D. (D) Protector Length (E) Cable Size (F) Control Line (G) 2-3/8" EUE 4.54" – 4.61" 8.82" AWG #1 16×47 AWG #2 15 × 45 AWG #4 14 × 40 AWG #5 13 × 38 1/8" 1/4" 3/8" 2-7/8" 5.03" – 5.10" 9.21" 3-1/2" 5.71" – 5.77" 9.69" 4" 6.21" – 6.27" 9.96" 4-1/2" 6.71 – 6.75" 10.2" Common Specification of Cross Coupling Casting ESP Cable Protector for Round Channel Tubing O.D. (A) Coupling Specification Running O.D. (D) Protector Length (E) Cable Size (F) 2-3/8" EUE 5.34" – 5.41" 8.82" AWG #1 ɸ40 AWG #2 ɸ38 AWG #3 ɸ36 AWG #4 ɸ34 2-7/8" 5.83" – 5.90" 9.21" 3-1/2" 6.51" – 6.57" 9.69" 4" 7.01" – 7.07" 9.96" 4-1/2" 7.31" – 7.35 10.2" more>

$2.6

Category: Gifts, Crafts & Jewelry/Other Unclassified

Company: SueGao Craft Industrial Co., Limited

Product Description: Material: Iron / brass / copper / zinc alloy etc. Size: Base on Customer's request Thickness: 3-6mm or according to customer request. Plating: Nickel, antique nickel, black nickel, brass, antique brass, copper, antique copper, gold, antique gold, silver, antique silver, chrome, dyed black, double plating and more Surface: Soft/Synthetic/Hard enamel/Printed etc. MOQ: 1pcs more>

Negotiable

Category: Chemicals

Company: 常州远大医药化工有限公司

Product Description: CAS NO:355806-00-7EC NO:Molecular Formula:C26H36FN3O6SMolecular Weight:537.6439Synonyms:;(+)-(3r, 5s)-7-[4-(4-Fluorophenyl)-6-Isopropyl-2-(N-Methyl-N-Methanesulfonylamino)Pyrimidin-5-Yl]-(3, 5)-Dihydroxy-6(E)-Heptenoate;Rosuvastatin calcium intermediate R-3;Rosuvastatin tert-Butyl Ester;(3R,5S,6E)-7-[4-(4-fluorophenyl)-6-isopropyl-2-(N-methyl-N-methylsulfonyl amino)pyrinidine-5-yl]-3,5-dihydrosy-6-heptane acid,dimethylethyl ester;tert-Butyl(6E)-7-[4-(4-fluorophenyl)-6-isopropyl-2-[methyl(methylsulfonyl)amino]pyrimidin-5-yl]-(3R,5S)-3,5-dihydroxyhept-6-enoate;tert-butyl (3R,5S,6E)-7-{4-(4-fluorophenyl)-6-(1-methylethyl)-2-[methyl(methylsulfonyl)amino]pyrimidin-5-yl}-3,5-dihydroxyhept-6-enoate;tert-Butyl rosuvastatin;(3R,5S,6E)-7-[4-(4-Fluorophenyl)-6-isopropyl-2-[(methanesulfonyl)methylamino]pyrimidin-5-yl]-3,5-dihydroxyhept-6-enoic acid tert-butyl ester;Molecular Structure: more>