... flanges(BL flange),Threaded flange(TH flange), Socket welding flange(SW flange) ,PJ flange,Lap joint flange(LJ)etc. Used for ... ,500lbsFlangeWN Flange, SO Flange, RTJ Flange, BL Flange, LJ Flange, SW Flange, Thread Flange, Plate flange, etc.Diameter range: 1/2 ...