... /GL/LR/NK/RINA/KR/CCS Bulb flat(HP80-HP430), L shaped steel, Angle steel, Seamless pipe hot rolled ship plateship ... 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 ... , coil steel, I-beam, H-beam, square tube, rectangular tube, L section steel to customers for use in construction, petrochemical refining ...