... , Q345B, ST37-2, A36, S235JRG Technique: Hot Rolled Length(m): 6,9,12We supply high quality Channel steel with reasonable price ... (mm)thickness (mm)thickness (mm)weight (kg/m)50*253.00~5.006.002.37~3.4675*403.807.005.3075 ... .0013.5030.30250*909.0013.0034.60300*909.0013.0038.10 Hot Rolled JIS and G/B Channel Steel