Profile: China ShuangDa Valve Co., Ltd. manufactures industrial steel valves. We are an ISO 9001:2000 certified company. Our products include butterfly, globe, solid wedge gate, wafer check and truunion ball valves. Our valves are designed according to API, BS, DIN and JIS standards. Valves are manual operated with lever, hand wheel, gear and automatic operated with pneumatic, hydraulic and electric actuator types. We also have exquisite mechanical processing and welding machines including CNC, vertical & horizontal lathe, physical/chemical analysis equipment & test machines.