Stainless Steel Flange, Pipe Fittings, Valve manufacturer / supplier in China, offering BS 4504 DN10~DN600 Pn6~Pn40 Corrosion Resistance Carbon Steel Gr. 60 So Flange, ISO 7005-1 DN500 Pipe End Closure Alloy Steel Lf2 Slip-on Flange, ISO 7005-1 DN450 Chilled Water Heating Alloy Steel ASTM A350 So Flange and so on.