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| 钝滚梢，滚柱齿啮合 | |||
| 钝齿啮合 | |||
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| 滚销齿; 圆柱齿 | |||
| 滚削齿; 嵌齿 | |||
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pin toothing : 2 phrases in 1 subject |
| Technology | 2 |
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