... JRG1, Q235, Q345 etc. 2.Length : 6 meter, 9 meter I beam / I-beam / I beeam steel1> Material : SS 400, ST37-2 , A36, S235 JRG1 ... , founded in 2000. Our main products include angle steel, channel, I-beam, H-beam, deformed bar, round bar, steel pipe, steel plate and ... your detailed requirements, including the material, specification, quantity mild steel I beam