... QB, JIS, European standard 3.length is 6m---12m. hot rolled channel steel Grade: Q235B, SS400, Q235, Q345, ... Q345B, ST37-2, A36, S235JRG Technique: Hot Rolled Length(m): 6,9,12We supply high quality Channel ... steel with reasonable price. Including Chinese standard, Japanese standard and so on.Material: SS400, ST37-2, A36, S235JRG1 ... .0034.60300*909.0013.0038.10 Hot Rolled JIS and G/B Channel Steel