| 摘要 |
Threaded device to be applied on unthreaded bottle's neck, consisting of externally threaded (3) lunette provided with a side opening (9) that allows an easy click inserting, by the reinforcing collar, on the necks (1) of the bottles non provided with a threading. Several capsules, appropriately threaded in order to ensure the hermetic closing of the bottles, can be screwed on the external threading (3) of the lunette (2).
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