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| 销钉用黄铜 | |||
| 针用黄铜 | |||
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| 针用黄铜; 针铜 (62Cu,38Zn) | |||
| pin metal: 5 phrases in 3 subjects |
| Electronics | 1 |
| Metallurgy | 2 |
| Technology | 2 |
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