... .length is 6m---12m. hot rolled channel steel Grade: Q235B, SS400, Q235, Q345, Q345B, ST37-2, A36, S235JRG Technique: Hot Rolled Length(m): 6,9 ... price. Including Chinese standard, Japanese standard and so on.Material: SS400, ST37-2, A36, S235JRG1, Q235, Q345 etc. Standard: GB/JIS ...