carbon steel /alloy Flat Slip-on Bind Flanges Standard:ANSI ASME,DIN,GB Material: ... carbon,stainless alloy steel ISO9001:2008 carbon steel /alloy Flat Slip-on Bind /Toruseal Flange Varieties: threaded flange, slip-on ... neck flange (WNF), blind flange, orifice flange, reducing flange, pad type flange, loose hubbed flange, welding plate flange, welding neck collar ...