... , Q370R, 09MnNiDR, 18MnMoNbR, 15MnNiDRHSLA/ High Strength Low Alloy Steel Plate: 1>. Standard: ASTM Grade: A572 Grade 50, ... 20Cr, 40Cr, 10CrMoAL, 38CrMoAL, 20CrMnMo, 12CrMoVNi, 30CrMnSiABridge Steel Plate: 1>. Standard: Special Condition Grade: 14MnNbq2>. GB Q235qC, ... (L420), X65, X70Quenching and Tempering High Tensile Steel Plate: Standard: Special ConditionGrade: WH70Q, WQ590D, Q550DThe property ...