... Q345 Q390 Q420 Q460 (AH/... Thickness: 8mm--220mm Place of Origin: China (Mainland) Brand Name:Zhuxin Model Number: ... Rolled Surface Treatment: Coated Application: Steel for machinary,building,bridg... Special Use: High-strength Steel Plate Width: 1500mm--4050mm Length: ... testing: Grade1, 2,33.Main application: This kind of steel plate are mainly used for shipbuilding, bridge, machinery, boiler ...