... for bridgesQ235q, Q345q,Q370q,Q420qGB/T714—20005Hot-rolled steel plates for plasticMouldsSM3Cr2Mo,SM3Cr3NiMoYB/T107—19976Hull structural steelsH 6~160W ... A32,D32,E32,A36,D36,E36GB712—2009Rules of classificationsociety7Steel plates for boilersH 6~120W 1500~3600L 6000~1800020g,16MngGB713 ... quality steel plate, seamless pipe, angle, re-bar, wire, round steel, channel steel, PC steel bar, flat, bulb flat, ...