Stainless Steel Flange, Pipe Fittings, Valve manufacturer / supplier in China, offering ANSI B16.5 DN80 Class 300 High-Temperature Steam Stainless Steel Necked Flat Welding Flange, ANSI B16.5 DN50 Class 150 Energy Pipelines Gr. 70 So Flange, ANSI B16.5 DN15~DN600 Class 150~2500 Power Pipelines Gr. 60 Slip on Flange and so on.