I beam 1.Grade: Q235 Q345 A36 SS400 S235JR ST37, etc ... 3.Web Width: 100-630mm 4.Leg Heigh: 68-180mm I beam1.Grade: Q235 Q345 A36 SS400 S235JR ST37, etc2.Thickness ... .Our company is dealing with :various of profile steel ( like I Beam , Channel ,Angle ,H Beam etc.) , various of sheets/coil ...