... A48CPR, SA612M, 07MnNiMoVDR, 07MnCrMoVR, 12MnNiVR, WDB620 / Q500FC7>. GB Q245R, Q345R, 16MnDR, Q370R, 09MnNiDR, 18MnMoNbR, 15MnNiDRHSLA/ ... 20CrMnMo, 12CrMoVNi, 30CrMnSiABridge Steel Plate: 1>. Standard: Special Condition Grade: 14MnNbq2>. GB Q235qC, Q345qC (16Mnq), Q370qC, Q420qCBuilding ... , Q390GJC, Q420GJC, Q460GJCHigh Quality Carbon Steel Plate: 1>. ASTM 10252>. GB 20Mn, 50Mn, 10#, 20#, 25#, 30#, ...