... : ANSI, DIN, BS, JIS, EN, JB, GB, UNI,API lap joint flang stub end Technics: Forged Size: from 1/2 to ... ; 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, Orifice Flange ...