| 摘要 |
<p>The device has a support (10) extending along a longitudinal axis. Two rows (20, 30) of teeth are formed with the support in a monolithic manner. The rows of teeth are connected on the same side of the support and extend on one fourth of the length of the support parallel to the longitudinal axis of the support. Each row has two teeth partially extending on both sides of geometrical separation surfaces (S1, S2) extending along the row.</p> |
