... saw pipes, oil pipes, ERW pipes, seamless steel pipes,elbow,reducer,tee,caps,flange,tube etc.. ... R, S/R, 45deg,90deg,180DegMATERIAL : carbon steel,alloy steel,stainless steel, A234 WPB STANDARD:ANSI B16.9/16.28 ... 2D 3D, 4D, 5D etc.6.All kinds of Flanges, welding neck , slip on , socket weld , threaded ... blind, spectacle, orifice, ring and long welding neck flanges.SIZE: 1/2 inch-72 inchWALL THICKNESS: SCH ...