| 摘要 |
The container has a lid which comprises a cover. The open end of the container has a sealing collar. The cover has a lower part forming an elastic stopper which is pushed over the shoulder. The collar has a weakened zone which extends around the perimeter and comprises slits or perforations. This gives way when the part of the collar above the weakened zone is turned at the same time as the container is held. - The outer diameter of the cover is less than the outer diameter of the container and more than its internal diameter. The outer diameter of the collar equals the outer dia. of the container. The internal dia. of the collar is similar to the outer diameter of the cover. |
