Ball Valves, Gate Valves, Globe Valves manufacturer / supplier in China, offering J-Valves Control Gas Valve 6inch 600lb Rtj A105n Flanged Duplex Stainless Steel Dbb Ball Valve, J-Valves API CE 300lb Floating Flange Stainless Steel Ball Valve, J-Valves API CE 300lb Full Bore Floating Flange Stainless Steel Ball Valve and so on.