| 摘要 |
The present disclosure involves various embodiments for finishing the internal wall of a capillary tube. A quantity of abrasive particles and a rod are placed in a capillary tube, wherein a portion of the abrasive particles is magnetic. A magnet is positioned near a side of the capillary tube, thereby attracting the abrasive particles toward an internal wall of the capillary tube. A relative rotation of the capillary tube is produced with respect to the magnet, thereby causing the abrasive particles to finish the internal wall of the capillary tube.
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