Valves, Ball Valve, Gate Valve manufacturer / supplier in China, offering Awwa/ANSI B16.5/GB/GOST/API 594 Cast Steel Wcb 1′′ 2′′ 3′′ 4′′ DN25/50/80/100 Flanged Check Valve for Water Systems, ANSI/API 6D/GB/GOST/BS 1868 Wcb Ductile Iron 4′′ 6′′ 8′′ 10′′ DN100/150/200/250 Swing Check Valve for Steam and Industrial, Awwa/GB/GOST/ASME B16.34/API 594 CF8 Stainless Steel 316 1′′ 2′′ 3′′ 4′′ DN25/50/80/100 Silent Check Valve for Water Systems and so on.