... galvanization, cold galvanization or colored electroplate, powder coating and so on. Types Of Jointing Faces: raised face; ... ring joint face; tongue and groove face; male and female face; lapped joint; flat face; ... Spacer & Blanks), Square Flange, Long Welding Neck (LWN) and so on. Standards: Ansi B16.5, A105 Class 150 ... 6093 (Rst37.2, S235jrg2, A105 ) flange and lap joint flang stub end