1.steel pipe flange,ansi flange,tube flange for pipe joint 2.1/ ... /T,L/C 5.API,CE,ISO flange steel pipe flange,ansi flange,tube flange for pipe joint 1.Products ... steel,alloy steel 3. Size range: From ½” up to 60” "4. Schedule:SCH STD, XS, XXS, SCH 10 ~ SCH 1605. STANDARDS:ANSI ... F12, F22, F913 STAINLESS STEEL STANDARDSCE and certification:ASTM A182 F304/304L, F316/316L, F321, F347, ANSI, ISO, JIS, DIN, ...