... . 2.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 ... .5030.30250*909.0013.0034.60300*909.0013.0038.10 Hot Rolled JIS and G/B Channel Steel