Valves, Ball Valve, Gate Valve manufacturer / supplier in China, offering GB/GOST/API 608 Stainless Steel 316L DIN/API/JIS Wcb Flange Slowly Closing Silencing Check Valve Non Return Valve, GB/GOST/API 608 Stainless Steel 316L Ball Valve with Locking Device and Flanged Ends for Pipeline Systems, Heavy Duty GB/GOST/API 608 Stainless Steel 316L Cast Steel Ball Valve with Full Port for High-Temperature Applications and so on.