Shanghai Qi Yuan Valve Manufacturing Co., Ltd. is the focal point of industrial machinery enterprises in Shanghai, specializes in the development of various types of valves, development, production, sales and after-sales service in one of the major joint-stock enterprises. Company's main products are valve, ball valves, butterfly valves, safety valves and the closing valves, check valves, pressure reducing valve, Xuan Sefa, plunger valves, needle valves, regulating valve and various Lining Plastic corrosion-resistant valves, Power Plant series of valves, and special valve in the R & D, manufacturing. Materials: Carbon steel, stainless steel, alloy steel and specialty materials, etc.