Knife Gate Valve, Ball Valve, Forged Steel Valve manufacturer / supplier in China, offering ASTM/ASME/ANSI American-Standard/DIN 150lb DN450 Wcb 316L Flange Carbon Steel Swing Check Valve for Water Control, DIN/JIS/GOST Worm Gear Ss/Wcb/Cast Iron Material for Heavy Duty Solid Electric Wedge Gate Valve, DIN/JIS CE Approved 10K Wcb Factory Wholesale Floating Flange Worm Gear Electric Actuator Ball Valve and so on.