... , Slip-on,Bind ,Welding neck etc. LOOSE FLANGE1.Carbon steel flange with different variaties 2.Size: from 1/2"to 80" DN15 ... 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 ...