Hot rolled HR steel plate. Grades description: Q235, SS400, Q345,SPHC, astm A36, A283, St37-2, S235JR Hot rolled steel plate.Grades description: Q235, SS400, SPHC, A36, A283, St37-2, S235JROther grades :Q345, 45# .astm a572.Thickness: 3.0mm-100mmWidth: 1250/1500/1800/2000/2200-3000mm