... Slip-on, Welding Neck, Blind, Threades, Lap-joint, Socket welding,flange Steel Flanges Fittings The main flange products of our company include: ... -on flanges, Blind flanges, Threaded flange, Plate flange, Lap joint flange and Socket welding flange etc., with specification from 1 ... Kinds of flange:Slip-on, Welding Neck, Blind, Threades, Lap-joint, Socket welding;c)Class of pressure: 150LB, 300LB, 600LB, ...