... , JIS, EN, JB, GB, UNI,API lap joint flang stub end Technics: Forged Size: from 1/2 ... . Types Of Jointing Faces: raised face; ring joint face; tongue and groove face; male and female ... , Slip-On Flange (SO), Socket Welding Flange, Lap Joint Flange (LJF), Welding Neck Flange (WNF), Blind Flange ... Flange, Spectacle FLG8 (Spacer & Blanks), Square Flange, Long Welding Neck (LWN) and so on. Standards: Ansi B16 ...