品名：锻造圆钢 牌号：C45,CK45,S45C,45#,S20C,S35C,C60,ST52-3,ASTM A105, 42CrMo4,S355J2G3,SAE8620,16MnCr5,20MnCr5,34CrNiMo6, SAE4130,SAE4340,18CrNiMo7-6,39CrNiMo3,SAE4140,17CrNiMo6, 38CrMoAl,SCM440,SCM415,SCM420,SNCM439,S26C;21CrMoV511, 56NiCrMoV7,ST52-3;SACM645,30Cr