... structuralH 6~120W 1500~3600L 6000~18000Q235GJ (Z),Q345 GJ (Z),Q390GJ (Z),Q420 GJ (Z), Q460GJ (Z)GB/T19879—200510Pipeline steelsH 6~40W 1500 ... , wire, round steel, channel steel, PC steel bar, flat, bulb flat, coil steel, I-beam, H-beam, square tube, rectangular tube, L section steel to customers ...