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| 轴颈铜套 | |||
| 车辆轴承用黄铜 (65Cu, 5 ~10Sn,5~30Pb) | |||
| 轴颈铜衬; 轴承黄铜 | |||
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journal brass : 1 phrase in 1 subject |
| Technology | 1 |
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