Stainless Steel Flange, Pipe Fittings, Valve manufacturer / supplier in China, offering DIN 2633 DN1000 Rn16 Offshore Alloy Steel ASTM A350 Welding Neck Flange, DIN 2633 DN800 Pn10 Shipbuilding Alloy Steel F22 (2.25Cr-1Mo) Welding Neck Flange, DIN2633 DN600 Pn6 Nuclear Plants Alloy Steel F11 (1.25Cr-0.5Mo) Weld Neck Flange and so on.