... ,NK,RINA,GB 2.Grade: A/B/C/D/E Q235 Q345 Q390 Q420 Q460(AH/DH/EH/FH32,36,40 ... NK,RINA,GB 2.Grade: A/B/C/D/E Q235 Q345 Q390 Q420 Q460(AH/DH/EH/FH32,36,40 ... / Ultrasonic testing: Grade1, 2,33.Main application: This kind of steel plate are mainly used for shipbuilding, bridge, machinery, boiler and ... /D/E Q235 Q345 Q390 Q420 Q460 (AH/DH/EH/FH32,36,40) Q390qC,D,E-Z Hot rolled high-quality steel plate and coil