Stainless Steel Flange, Pipe Fittings, Valve manufacturer / supplier in China, offering Spectacle Blind Flange BS 4504 Pn10 DN10~DN600 6061-T6 CNC Machining Stainless Steel System Testing & Maintenance, Spectacle Blind Flange BS 4504 Pn10 DN10~DN600 6061-T6 CNC Machining Ring Joint Face System Testing & Maintenance, ANSI B16.47 Nps 26" Class 600 Chilled Water & Heating F316/F316L Flat Flange Stainless Steel and so on.