I beam steel 1.ISO9001 Quality System Certificate 2.Hot rolled and galvanized 3.Grade: Q235, SS400, A36 4.Length: 6M, 9M, I beam steel1) TYPE: HOT ROLLED I BEAM 2) SIZE: 10#---63# 3) LENGTH: 6M, 9M, 12M ) MATERIAL: Q235, SS400, ASTM A 36, S235JR GB STANDARD I BEAM SIZE(MM)H(MM)B(MM)T(MM)KG/MSIZE(MM)H(MM)B(MM)T(MM)KG/M10100684.511.26136A36013610.060.03712120745.013.98736B36013812.065.68914140805. ...