... .we are a manufacturer of steel pipe fittings, cover elbow, flange, tee, reducer, cap, clamp, etc. 2.We have advanced prodiction ... products can be reliable.Type of flangeWN Flange.SO Flange,T Flange,Blind Flange,LJ Flange,SW Flange and Threaded Flange. Manufacture StandardISO7005,GB9112-9124,GB13402,SH3406HG20615 ...