... flange, slip-on flange (SO), socket welding flange, lap joint flange (LJF), welding neck flange (WNF), blind flange, orifice flange, reducing flange, pad type flange, loose hubbed flange, welding plate flange, welding neck ... and so on. Detailed information as follows:1.Standard:ANSI,ASTM,ASME,DIN,GB2.Material:carbon steel,stainless steel and alloy ...