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| 71. | vertical -spindle double ended grinding mahcine for piston ring |
| 活塞环立轴双端面磨床 |
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| 72. | The end of the hole is hemispherical. |
| 小孔端面成半球状。 |
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| 73. | facing on mandrel |
| 在心轴上车削端面 |
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| 74. | double disc surface grinding machines with horizontal spindle |
| 卧轴双端面磨床 |
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| 75. | precision CNC internal and end grinding machine |
| 精密数控内圆-端面磨床 |
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| 76. | radial double mechanical seal |
| 径向双端面机械密封 |
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| 77. | axial double mechanical seal |
| 轴向双端面机械密封 |
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| 78. | bore face machine |
| 镗孔锪端面加工机床 |
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| 79. | pin shoulder face |
| 阳螺纹台肩端面 |
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| 80. | face-milling cutter grinder |
| 端面铣刀刃磨机 |
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