| 摘要 |
<p>The proposed plastic snap closure is provided on the inner surface of the cap wall (2) with snap-in elements (3) which can be snapped in over a bead in the container mouth. To show that the closure has already been opened for the first time, approximately vertical weakened zones (4) are provided at the bottom edge of the closure cap. When the closure is opened for the first time, the cap wall (2) is torn in the area of at least one of these weakened zones (4).</p> |
