... Neck flange(WN),Slip-On flange(SO),Blind flange(BL),Socket Weld flange SW), Plate flange(PL),Threaded flange (TH),Lap ... FLANGE, SLIP-ON FLANGE, BLIND FLANGE,HIGH HUB BLIND FLANGE,,SOCKET WELD FLANGE.LAPJOINT FLANGE, THREADED FLANGE. RING TYPE JOINT FLANGE. ... flanges,pipe end cap,eccentric/concentric reducers ;sprial welded steel pipe (SSAW),seamless steel pipe (SMLS) ,and LSAW pipe! socket weld flange ...