... JIS, EN, JB, GB, UNI,API lap joint flang stub end Technics: Forged Size: from 1/ ... Types Of Jointing Faces: raised face; ring joint face; tongue and groove face; male and ... female face; lapped joint; flat face; threaded Connection: WeldingVarieties: Threaded Flange ... Slip-On Flange (SO), Socket Welding Flange, Lap Joint Flange (LJF), Welding Neck Flange (WNF), Blind Flange ...