34CRA1S5 34CRA1MO5 41CRA1MO7 31CRMO12 31CRMOV9 15CRMOV13-9 39CRMOV13-9 34CRA1NI7 1.8504 1.8506 1.8507 1.8509 1.8509 1.8515 1.8519 1.8521 1.8523 1.8550 CF35 C35G CF45 ***5G CF53 C53G CF70 C70G 40MN4 37MNSI5 45CR2 38CR4 42CR4 34CRMO4 41CRMO4 49CRMO4 51CRV4 50CRV4 58CRV4 79NI1 83NI1 1.1185 1.1193 1.1213 1.1249 1.1157 1.5122 1.7005 1.7043 1.7045 1.7220 1.7238 1.8138 1.8159 1.8161 1.6971 16972 调质结构钢C22 C25