1)Customized Steel U Channel With JIS G3101 SS400, ASTM A36, EN 10025 S275JR 2)short delivery date 3)fine quality 4) ... 1) Material: Q235B , SS400,A36,S235JR,Q1952) Usage: structure construction and electronic tower building3) Weight tolarance: -4% TO -10%4) Payment ... ) Inspection: accept third party inspection 1)Customized Steel U Channel With JIS G3101 SS400, ASTM A36, EN 10025 S275JR