... Flange, Flat Flange, Slip-on Flange,flat welding flange,Welding Neck Flange, Long Welding Neck Flange, Blind Flange, Socket Welding Flange, Thread Flange, Screwed Flange, Lap Joint Flange ... Connection Type: Raised Face, Flat Face, Ring Type Joint, Lap-Joint Face, Large Male- Female, Small Male-Female, Large ... Pallet or Case (7) Usage: flat welding flange are used in petroleum/ chemical industry/power/ ...