... 16Mn, 15MnV, 15MnVN, Q460C Shipbuilding and Offshore Platform Steel Plate:Classification Society Certificate: CCS,DNV,GL,LR,BV,ABS ... B, D, E, AH32, DH32, EH32, AH36, DH36, EH36, AH40, DH40, EH40, 2H Grade 50 Alloy Structural Steel Plate:Standard ... 42CrMo, 20Cr, 40Cr, 10CrMoAL, 38CrMoAL, 20CrMnMo, 12CrMoVNi, 30CrMnSiABridge Steel Plate:1>. Standard: Special Condition Grade: 14MnNbq2>. GB Q235qC, Q345qC ...