Depamu (Hangzhou) Pumps Technology Co., Ltd., located in National High-tech Development Zone, is a professional enterprise that manufactures metering pumps, high pressure reciprocating pumps, leakage-free chemical pumps and packaged chemical dosing devices. At the beginning of 1990s, the Company introduced hydraulic diaphragm metering pumps of the high-new series, advanced technology of mixed-type dosing devices as well as scientific management mode from Germany, which let the company reaches an advanced level in the world. Besides having a good sales volume in the domestic market, its products are also exported to 12 countries and regions such as France, Australia, South Africa and Southeast Asia etc. By taking technology as the guide, Depamu Company has developed 86 housings, over 4000 varieties of specifications and models of the metering pumps and chemical pumps, and developed internationally leading three diaphragm pumps, four diaphragm pumps, diaphragm leakage alarm pumps, heat-insulating diaphragm pumps and special features pumps, which have several patented technologies. The products adhere to API 675 standard of American Petroleum Institute, and they have also passed certifications of international authorities such as DNV, ISO 9001: 2000 Quality Management System.