... :1/2"-72" material:carbon steel, alloy steel standard:ANSI,ASTM,BS,JIS,DIN certificate:ISO9001-2000 Name: steel pipe fittingsMaterial: carbon steel, alloy steelA105, A106, ... ANSI, ASME, DIN, JIS, BS Special design available as requirement of customerApplications: For use in the petroleum, smelting, foodstuff, power, ... All products are manufactured under ISO9001-2000 strictly. alloy steel pipe fittings