| 摘要 |
<p>The pair have predetermined breaking points (2, 2') running across depths of a left end cap (1) and a right end cap (1'), respectively. The breaking points are used for separation of the left and right end caps in front regions (3, 3') and rear regions (8, 8'), respectively. The breaking points correspond to each other, such that the front region of the left end cap forms a positive connection with the front region of the right end cap. The breaking points form a dove-tail type undercut.</p> |
