... A283,A529ASTMSM400,SM490,SM520,SM570JIS G31064Structural steel for bridgesH:6-120W:900-4800I:3000-25000Q235q,Q345q,Q370q,Q420qGB/T714 ... ,FH69,Z15,Z25,Z35GB712-2000API GB53136Steel plates for boilers and pressure vesselsH:5-300W:900-4800I:3000-25000Q245R,Q345R ... ,SPV4908Low alloy steel plates for low temperature pressure vesselsH:6-120W:900-4800I:3000-2500016MnDR,15MnNiDR,09MnNIDRGB3531-20089Steel plates ...