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原帖由 asdolmlm 于 2006-9-27 22:06 发表 ' J' m* b4 p2 C/ \9 y6 j碳素钢:A3,50,55,40,45 2 b+ y1 `- l. I* V) f合金钢:45Mn,38CrMoAlA,20Cr,20CrMo,40Cr,20Mn2TiB,50Mn20 y) F# b" B. c- b( X 铸钢:ZG45, # V: R4 ?4 m( b- \" Y( [铸铁:HT300,QT600-3,HT1804 ?0 N- ^& E6 O: {5 u1 X 有色金属:ZQSnD6-3-3,HAl60-1-1,ZCuZn40Pb2,QSn6.5-0.1,QA15
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