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6061 7075 5083 5052 6063 2①化學(xué)成分（質(zhì)量分數(shù)）（%）SiFeCuMnMgCrZnTi單個合計Ai0.4~0.80.70.15~0.40.150.8~1.20.04~0.35
2012-04-09 電議/KG
①化學(xué)成分（質(zhì)量分數(shù)）（%）SiFeCuMnMgCrZnTi單個合計Ai0.4~0.80.70.15~0.40.150.8~1.20.04~0.35
2012-04-09 電議/KG