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| Ԫ��Element | ��� Min(%) | ��� Max (%) |
| �XAluminum (Al) | 3.8 | 4.3 |
| �VMagnesium (Mg) | 0.02 | 0.06 |
| �~Copper (Cu) | 0.2 | 0.4 |
| �ULead (Pb) | 0.003 | |
| �kCadmium (Cd) | 0.003 | |
| �aTin (Sn) | 0.001 | |
| �F Lron (Fe) | 0.03 | |
| � Nickel (Ni) | 0.001 | |
| �� Silicon (Si) | 0.02 | |
| �Lindium (In) | 0.0005 | |
| �BThallium (Ti) | 0.001 | |
| �\Zinc (Zn) | ���� (Balance) |