Steel Pipe Fitting, Steel Flange, Forged Flanges manufacturer / supplier in China, offering ANSI B16.5/DIN/GOST/Forging Fitting Carbon/Stainless Steel Pn10/16 Welding/Weld Neck/Threaded/Blind/Slip on/ Plate/Socket/ Orifice RF/FF Pipe Fitting Flange, High Quality ASME B16.9 Carbon/ Stainless Steel ASME A403 Wp 304 Wp 316 Reducing Butt-Welded Pipe Fitting Efficient /Concentric Reducer, High Temperature Corrosion Resistance High Strength High Precision Flange Flat Welding/Butt Welding/Thread/Loose Sleeveflange and so on.