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| Cu | Si | Fe | Mn | Mg | Zn | Cr | Ti | Pb.Bi | Al | |
| 1.2-2.0 | 0.4 | 0.5 | 0.3 | 2.1-2.9 | 5.1-6.1 | 0.4 | 0.06 | / | ¾l¶q | |
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