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| 顿巴〔德国〕黄铜; 铜锌合金; 顿巴黄铜波纹管 | |||
| 黄铜伸缩管 | |||
| 顿巴黄铜; 德国黄铜 (一种铜与锌的合金) | |||
| 顿巴克黄铜; 德国黄铜 | |||
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| 顿巴克黄铜铜锌合金 | |||
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tombac : 3 phrases in 1 subject |
| Metallurgy | 3 |
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