Steel Pipe Fitting, Steel Flange, Forged Flanges manufacturer / supplier in China, offering En 1092-1 Type12 Pn16 DN50 RF Forged Carbon Steel Slip on Flange, Stainless Steel JIS Ss DN80 Pn16 Carbon Steel Slip on Flange, Factory Price Butt-Welded Fittings Steel Pipe Equal/ Reducing/Cross Tee and so on.