Knife Gate Valve, Ball Valve, Forged Steel Valve manufacturer / supplier in China, offering DIN/API/GOST Hydraulic Bevel Bolt Bonnet Stainless Steel 304 316 Pneumatic Hydraulic Discount Vacuum Flange Gate Valve, API/DIN 1500lb Factory Ventory in Stock Customized Stainless Steel 2PC Electric Actuatorthread Forged Ball Valve, DIN/API Big Size DN800 High Pressure Stainless Steel 316L Stop 02 Inch Glass 1500 Wc6 Material F11 Power Plant Globe Valve and so on.