17CrMnBAH 40MnBAH 40MnBH钢材===============俊峰公司部分销售：易切削结构钢：0 8 1119 1 1 1 1211 1212 L13 12L14 12L15 G11080 G11090 G11100 G11160 G11170 G11180 G11190 G11320 G11370 G11380 G11400 G11410 G11440 G11450 G11460 G11510 G12110 G12120 G12130 G12150 G12134 G12144 G12154  轴承钢：B1 B2 B3 B4 B5 B6 B7 B8 K B20 B21 B22 B23 B24 B25 B26 B27 B28 B29 B30 B31 B32 4118H 4320H 4620H 4720H 4817H 4820H 5120H 8617H 8620H 9310H B40 B41 B42 B43 0 4   0 00 SUJ1 SUJ2 SUJ3 SUJ4 SUJ5 合金钢：SCMV1 SCMV2 SCMV3 SCMV4 SCMV5 SCMV6