lap joint flang stub end Size: from 1/2 to 200 inch (DN15-DN6000) Standard: ... , BS, JIS, EN, JB, GB, UNI,API lap joint flang stub end Technics: Forged Size: from 1/2 to 48(DN15-DN6000 ... Flange, Plate (PL) Flange, Spectacle FLG8 (Spacer & Blanks), Square Flange, Long Welding Neck (LWN) and so on. Standards: Ansi B16.5 ... -6093 (Rst37.2, S235jrg2, A105 ) flange and lap joint flang stub end