1.Long welding neck flange 2.Standard; ANSI B16.5 3.Size: 1/8"-24" 4.Class:150,300,400,600,900,1500 & 2500 5.Face: FF,RF,RTJ Carbon steel A105 Long welding neck flange Flange Type:Butt Welding Flange, Welded Neck Flange , Slip-on FlangeSocket Welding Flange, Lap Joint Flange, Flat/Plate Flange, Orifice Flange, Threaded FlangeLoose Plate Flange , Steel Pipe Flange , Spectacle Flange, Anchor Flange ...