Stainless Steel Flange, Pipe Fittings, Valve manufacturer / supplier in China, offering ISO 7005-1 DN150 Pn40 Butt Welding Uns N10276 (C-276) Slip on Flange, JIS B2220 6 Inch Pharmaceutical Pipelines En AC-43000 Slip on Flange, JIS B2220 4 Inch Chemical Pipelines En 1706 Slip-on Flange and so on.