... , 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 ... with reasonable price. Including Chinese standard, Japanese standard and so on.Material: SS400, ST37-2, A36, ... Q345 etc. Standard: GB/JIS/EN/ASTM/DIN and others. Packing: In Bundle,Fasten by wire rod ...