... , ST37-2, A36, S235JRG1, Q235, Q345 etc. 6M,9M,12M.. I Beam steelMaterial: SS400, ST37-2, A36, S235JRG1, Q235, Q345 etc. Length ... I-beam steel, I beam bar, I beam iron, steel I beam, Iot rolled I beam steel, Iot rolled I beam iron, Iot rolled I-beam bar, jis I-beam bar, jis I-beam iron, jis I-beam steel, steel I beam, mild I beam steel, mild I beam iron, mild I-beam bar, all kind of I-beam steel ...