Knife Gate Valve, Ball Valve, Forged Steel Valve manufacturer / supplier in China, offering Standard M16 M20 M22 Stainless Steel Carbon Steel Grade 8.8 Hex Head Bolt, DIN Stainless Steel SS316 High Pressure Super Duplex Gas Thread Bellow High Temperature Globe Valve 10K Needle Globe Valve, ANSI/DIN Carbon Steel Wcb High Pressure Pilot Operated Flange Safety Safe Relief Valve and so on.