hot sale I beam 1> Material:Q235, Q345, SS400 2> Length:6M,9m,12m 3>GB/T19001-2008/ISO9001:2008 4>size:50*25*3/4/5 1 ... > Material : SS 400, A36, S235 JR, Q235 etc.2> Length : 6 meter ... Jing-Shen Expressway. Our main products include angle steel, channel, I-beam, H-beam, deformed bar and more. Under the Principle of "honesty ...