... ,SAE8620,Europe Standard:42CrMo4,25CrMo4,34CrNiMo6,39CrNiMo3,17NiCrMo6,18CrNiMo7-6,S355J2G3,ASTM A105,ST52-3,16MnCr5,20MnCr5,16MnCrS5,20MnCrS5,21CrMoV511,56NiCrMoV7 ... .B;Manufacturer:Jiangsu Zhuhong Forging Co.,Ltd Forged Blocks 16MnCr5/S355J2G3/AISI4140