I beam / I-beam / I beeam steel 1.Material : SS 400, ST37-2 , A36, S235 ... , Q235, Q345 etc. 2.Length : 6 meter, 9 meter I beam / I-beam / I beeam steel1> Material : SS 400, ST37-2 , A36, S235 ... etc.2> Length : 6 meter, 9 meter ,12 meter 3> Chinese Standard size : 100*68*4.5mm-630*180*17mm4> European ... ,Q235B Length : 6-12m Sell high quality hot rolled steel I beam JIS/GB standard