Knife Gate Valve, Ball Valve, Forged Steel Valve manufacturer / supplier in China, offering API/DIN 304 316 Male Female NPT Water Oil Gas 1PC Floating Stainless Steel Screwed PPR Thread Ball Valve, API/DIN/JIS Wcb Bolt Bonnet Bevel Gear Brass Pneumatic Actuator Flange Gate Valve, API/DIN/JIS/BS Electric Cast Iron Wcb 304 316 Bi-Directional Viton Seat Wafer Flange Pneumatic Knife Gate Valve for Water Treatment and so on.