... 48"TypeSlip-on flanges, Blind flanges, Lap joint flanges, Welding neck flanges, Spectacle flanges,TG flanges,Socket welding ... , Blind Flanges, Socket Weld Flanges, Lap Joint Flanges, Spectacles Flanges,Ring Joint Flanges, Orifice Flanges, Long Weld Neck Flanges,Deck Flange, etc ... 300#, 600#,900#,1500#, 2500#Wall thickness for welding neck flange: STD, SCH40, SCH80, SCH160. SCHXXSMaterial: carbon steel ...