... 80" DN15 TO DN2000 Materials: carbon steel or stainless steel pipe flange blanks Size: from 1/2" to 80"( dn15 to dn2000 ... 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 ...