美國標準合金結(jié)構(gòu)鋼 1330H H13300 1335H H13350 1340H H13400 1345H H13450 4027H H40270 4028H H40280 4032H H40320 4037H H40370 4042H H40420 4047H H40470 4118H H41180 4130H H41300 4135H H41350 4137H H41370 4140H H41400 4142H H41420 4145H H41450 4147H H41470 4150H H41500 4161H H41610 4320H H43200 4340H H43400 H4040H H43406 4419H H44190 4620H H46200 4621H H46210 4626 H46260 4718H H47180 4720H H47200 4815H H48150 4817H H48170 4820H H48200 50B40H H50401 50B44H H50441 5046H H50460 50B46H H50461 50***H H50501 50B60H H50601 5120H H51200 5130H H51300 5132H H51320 5135H H51350 5140H H51400 5145H H51450 5147H H51470 5150H H51500 5155H H51550 5160H H51600 51B60H H51601 6118H H61180 6150H H61500 81B45H H81451 8617H H86170 8620H H86200 8622H H86220 8625H H86250 8627H H86270 8630H H86300 86B30H H86301 8637H H86370 8640H H86400 8642H H86420 8645H 86B45H 8650H 8655H 8660H 8720H 8740H 8822H 9260H 9310H 94B15H 94B17H 94B30H美國易切削結(jié)構(gòu)鋼1108 G11080 1109 G11090 1110 G11100 1116 G11160 1117 G11170 1118 G11180 1119 G11190 1132 G11320 1137 G11370 1139 G11390 1140 G11400 1141 G11410 1144 G11440 1145 G11450 1146 G11460 1151 G11510 1211 G12110 1212 G12120 1213 G12130 1215 G12150 12L14 G12144 12L15 G12154