... customer's requirment;Other specification:Carbon Steel:C45, CK35,C60, C22Alloy Steel: 42CrMo4, 34CrNiMo6,39CrNiMo3,18CrNiMo5,17CrNiMo6,41Cr4,S355J2G3,ST52-3,16MnCr5,20MnCr5,21CrNiMo2 ... ,21CrMoV511,56NiCrMoV7,S355J2,41Cr4,51CrV4,41CrAlMo7,40NiCrMo7,40NiCrMo3;40CrMoV4-6Tool Steel: H13,1.2714 Forged Steel Round BAR C45N/S355J2G3