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Cu

Si

Fe

Mn

Mg

Zn

Cr

Ti

Pb.Bi

Al

3.8-4.9

0.50

0.50

0.3-0.9

1.2-1.8

0.25

0.10

0.15

/

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2.78

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472

325

120

10

285

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186

76

47

20

124

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MPa

483

345

120

18

283