butt weld pipe fitting,screwed flange,cap, elbow, reducer, tee, stub end material,cs/ss/alloy w.t. sch5-sch100 std xxs ITEM stainless steel elbow 90, elbow45, equal tee, reducer tee, bends, concentric reducer, eccectric reducer, screwed flange, cap, stub end MATERIAL carbon steel, stainless steel, alloy steel, some specialSTANDARD ANSI, ASME, API5L, DIN, JIS, BS, GB, or probuce according to ...