A74205 20MnTiBAH A74207

A74205 20MnTiBAH A74207 G10130 G10150  G10160 G10170 G10180 G10190 G10200 G10210 G10220 G10230 G10250 G10250 G10290 G10300 G10340 G10350  G10370  G10380 G10390  G10400 G10420 G10420 G10440 G10450 G10460 G10490 G10500 G10530 G10550 G10590 G10600 G10640 G10690 G10700 G10740 G10750 G10780 G107800 G10840 G10860 G10900 G10950 较高锰含量碳素钢1513 1518 1522 1524 1525 1526 1527 1536  1541 1547 1548 1551 1552 1561 1566 1572 G15130 G15220 G15240 G15250 G15260  G15270 G15360 G15410 G15410 G15470 G15480 G15510 G15520 G15610 G15660 G15720  1024 1027 1036 1041 1048 1051 1052 1061 1066 碳素钢M1008 M1010 M1012 M1015 M1017 M1020 M1023 M1025 M1031 M1044 高强度低合金钢（ASTM）A242 A440 A441 A529 A572 A588 A606 A607 A618 A633 A656 A690 A709 A715 A808 A812 A841 A871 TYPE1 TYPE2 CR.42 CR.45 CR.50 CR.60 CR.65 

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