... joint face etc. Flange Type are like below: Slip-on flanges, Blind flanges, Lap joint flanges, Welding neck ... Plate flange,Socket welding flanges, Threaded flanges. Slip On flanges are slipped over the pipe and then ... have a bore and are used to shut off a piping system or vassal opening. Its ... 316L,321 ,310S, 904L, S31803, F51. Flange Type Slip-on flanges, Blind flanges, Lap joint flanges, Welding ...