Stainless Steel Flange, Pipe Fittings, Valve manufacturer / supplier in China, offering JIS B2220 10 Inch Energy Pipelines En-Gjs-400-15 Screwed Flange, JIS B2220 6 Inch Power Pipelines En-Jl1040 Screwed Flange, JIS B2220 4 Inch Sanitary Systems Pipelines Lf2 Th Flange and so on.