... /2 to 200 inch (DN15-DN6000) Standard: ANSI, DIN, BS, JIS, EN, JB, GB, UNI,API lap joint flang stub end ... Flange, Slip-On Flange (SO), Socket Welding Flange, Lap Joint Flange (LJF), Welding Neck Flange (WNF), Blind Flange, Orifice Flange, Reducing Flange, Pad Type Flange, Loose Hubbed Flange, Welding Plate Flange ...