Knife Gate Valve, Ball Valve, Forged Steel Valve manufacturer / supplier in China, offering API/DIN/BS Pneumatic Straight Iron EPDM/PFA Liner Flange Saunders PTFE Cast Steel Diaphragm Valve, API. DIN Stainless Steel Air Thread Reducing Valve Is Resistant to High Temperature Heat Conduction Oil Steam & Water Pressure Reduce Valve, DIN/API/GOST Wafer Pneumatic Steel Wcb 304 316 Electric High Pressure High Performance Flange Cast Iron Butterfly Valve and so on.