Knife Gate Valve, Ball Valve, Forged Steel Valve manufacturer / supplier in China, offering API/DIN/GOST Brass/ Aluminum Bronze/Copper Material Stem Flanged NPT Threaded Gate Valve, DIN/API Wcb Cast Steel 304 High Plate Stainless Steel Pneuamtic Forged Cast Pneumatic Wafer Ball Valve, API/DIN/BS 10K Carbon Steel Iron Wcb EPDM PFA Liner Weir Pneumatic Stainless Steel Flange Diaphragm Valve and so on.