JINGGONG Valve Co., Ltd was established in1978. It covers an area of 15000 square meters, has 268 staffs, we have a valve research and develop center and CAD assistant design, development and manufacture technical force, which can produce various kinds of non-standard and special valves at the request of customers. The company has superior equipment, advanced manufacturing engineering and perfect testing means. It is one of the key enterprises in Wenzhou valve manufacturer field. With trustworthy quality, it has already gained ISO9001 Quality System Authentication Certificate in 2000, American Petroleum Institute API 6D�?�£??API Q1�?�£??CE & AZ products Authentication Certificate, and the special equipment manufacture license. Our company is a member unit of China Valve Association, the member unit of Sino petrifaction first class resource market, the member unit with first class supply network of Chinese Petroleum Gas Corp., the member unit of goods and materials purchasing network of Chinese Petroleum Pipeline Material Equipment head office, network member of power-station accessories supplying for State Power Company and the recommended products unit of Chinese Engineering Construction Association. There are more than 150 kinds of types and more than 1000 specifications valve serial products, such as gate valve, ball valve, butterfly valve, check valve, plug valve. In accordance with standards as GB, ANSI, API, JIS, DIN, BS�?�¯�?�¼?NF�?�¯�?�¼?ISO. Nominal diameter 3mm-2200mm and 1/2" ~36"; Nominal pressure:1.0MPa-42.0MPa and 150Lb-2500Lb; Working temperature: -196�?�¢??~595�?�¢??.The valve material can select LCB, WCB, CF8, CF3, CF8M, CF3M, WC6, WC9, ZGCr5Mo, ZG20CrMoV, ZG15CrMolV, 12CrMoV, ZG1Crl 8Ni9Ti, ZG1Crl 8Nil2Mo2Ti etc.