Shanghai Sanwei Valve Manufacturing Co., Ltd. --one well known title who created the "aircraft carrier" of both petroleum and natural gas valves. Today it becomes superior to the past such as merged itself, Shanghai fangyua Valve Manufacturing Co. Ltd, Zhejiang Fangyuan Valve Manufacturing Co. Ltd, Shanghai Fangyuan Petroleum Machinery Co. Ltd and Zhejiang Yongjia Fangyuan Power Station Valve Factory into one so as to have made it successful of resource sharing and superiority mutual suppl-ement and formed two bases (Shanghai, Wenzhou) with a registered capital up to 65million RMB, a land of 80, 000 square meters and more than 500 staff members of which 20 are senior engineering technicians and 55 midde-rank ones, and holds 350 pieces(sets)cold and hot processing and detecting equipments incuding heavy-type lathe grinder, miller, borer, digital controlled machine tools, hydraulic tester, physical and chemical lab, shock tester, flaw detector, hardness gauge etc., and an annual capacity up to over 12, 000 tons.

This Company always holds on the advanced step, such as one of the draught units of the national standard Pipeline valve, being accredited to ISO9001, API6A, API6D, CE, AZ etc. domestic and internationnal approvals, as the member of China Petroleum First-class Supply Network, NO. 1 Energy Network and National Electric Power System Supplier, being entitled as the pointed production enterprise by Chemical Equipment General Corporation and the products are extensively used for opening and closing the apparatus in petroleum, natural gas, electric power, well mouth etc Industries.

We make an accurate quality of valves with the patented knon-how; we construct a creditable system on the market with the human dignity; we enjoy benefit together with clients by means of lowering the cost through an enterprising management and we make great efforts to manufacture the national industrial products of a world brand so as to become a true aircraft carrier taking valves and petroleum machinery as home and abroad to set up such a relationship as mutual sharing and mutual wining.