... —19944Structural steels for bridgesQ235q, Q345q,Q370q,Q420qGB/T714—20005Hot-rolled steel plates for plasticMouldsSM3Cr2Mo,SM3Cr3NiMoYB/T107—19976Hull structural steelsH 6~160W 1500 ... , petrochemical refining, oil platforms, marine offshore costruction, pressure vessel factory, power generation, naval and military steel fabrication, machined metal parts industries,etc. Stock ...