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原帖由 asdolmlm 于 2006-9-27 22:06 发表; H! ?$ Y% J8 p 碳素钢:A3,50,55,40,45 _3 h! w2 ?1 P7 z( {3 ]$ h 合金钢:45Mn,38CrMoAlA,20Cr,20CrMo,40Cr,20Mn2TiB,50Mn2 M. U- w3 ]4 X5 n 铸钢:ZG45,6 M7 N# q6 `: \6 z 铸铁:HT300,QT600-3,HT180 4 |! v' I" Z. ~有色金属:ZQSnD6-3-3,HAl60-1-1,ZCuZn40Pb2,QSn6.5-0.1,QA15
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