Setra is a global leader in pressure sensors/transmitters, high-precision pressure sensors/transmitters, micro differential pressure sensors/transmitters, differential pressure sensors/transmitters, temperature and humidity sensors/transmitters, accelerometers and electronic balance technologies.

Atlas Copco Group is a world-leading manufacturer of compressors, vacuum solutions, generators, pumps, power tools, and assembly systems. Empowering customers to grow and drive society forward.

Shanghai Feizhong Refrigeration Equipment Co., Ltd. is affiliated to Zhongyou Industrial Group. It was founded in Songjiang Industrial Zone, Shanghai in 2013. It focuses on product design and development, production and sales, and technical service integration services. It is an excellent national supplier of dehumidification, humidification, constant temperature and humidity, industrial chillers and other air temperature and humidity system solution products. The product sales network covers all major and small cities across the country. Tel: 400-021-9919

Zhengzhou Great Wall Science & Technology Co., Ltd. has been focusing on the production of laboratory scientific research instruments and equipment for 36 years, creating high-quality domestic instruments, providing laboratory scientific research units with one-stop scientific instruments, experimental equipment, and technical solutions such as rotary evaporators, glass reactors, diaphragm vacuum pumps, constant temperature circulators, and agitators, to help the development of China's scientific research.

Kunshan Dafeng Machinery Co., Ltd. specializes in manufacturing and selling: three-leaf Roots blowers, submersible Roots blowers, Roots vacuum pumps, Roots blowers, blowers, aeration Roots blowers, sewage treatment blowers, and annular high-pressure blowers. It is a professional Roots blower manufacturer and three-leaf Roots blower manufacturer. It also acts as an agent for the sale of Italian DOSEURO quantitative dosing pumps. The products are complete and have specifications and materials for special purposes. The parent company of our company has obtained ISO9001 2000 certification. We have established a high-quality image with excellent quality and perfect after-sales service, the spirit of pursuing high quality, and absorbing new foreign concepts. The compression principle of our company's three-leaf Roots blower series products largely eliminates the noise source caused by pressure changes in two-leaf blowers.

Qidong Guangtong Lubrication Equipment Co., Ltd., a lubrication equipment manufacturer, provides customization and wholesale of electric lubrication pumps and oil-gas lubrication distributors. Qidong Guangtong Lubrication Equipment Co., Ltd. is a professional lubrication equipment manufacturer that specializes in electric dry oil pumps, electric refueling pumps, oil-gas lubrication distributors, and mobile electric lubrication pump series. It has introduced and transformed electric dry oil pumps, electric refueling pumps, and components from Japan, Germany, Italy, and other countries, mobile electric lubrication pumps of various pressures, oil-gas lubrication distributors, and lubrication equipment components, and has successfully applied them to the fields of metallurgy, electric power, mining, construction, and shipbuilding in China.

Hefei Zhengwei Hydraulic Company has advanced production equipment and complete testing methods. It is a professional company specializing in the research and development, production and sales of hydraulic gear pumps for construction machinery. The company has sufficient output and has a production line that integrates assembly, performance and air tightness testing. Zhengwei Company warmly welcomes customers from home and abroad to visit us and will always provide you with satisfactory products and high-quality services.

China. Donzheng Technology (formerly Donzheng Valve) was founded in 1993 with a registered capital of 105.58 million, an area of ​​27,000 square meters, and more than 300 employees. It is a company focused on the research and development of high-cleanliness pumps, valve controllers, automatic regulating valves, aseptic valves, container and process pipeline safety control technology, container and tank cleaning technology, tank and pipeline lighting technology, ASME BPE pipe fittings, aseptic pipeline accessories, high-cleanliness pipes, etc.

Qingdao Hainuoao Petroleum Machinery Manufacturing Co., Ltd. integrates design, R&D and manufacturing. Its products include: a full range of mud pumps, plunger pumps, fracturing pumps and their accessories, high-pressure forging and precision casting products, as well as OEM parts and customized products.