| 摘要 |
A head (4) of a trigger dispensing device for liquids comprises an auxiliary body (30) for the connection with a neck (10) of a bottle (2). The auxiliary body (30) comprises a closure base (32) suitable to close a mouth (13') of the bottle (2) and dual constraint means suitable to snap-engage with the neck (10) forming between the auxiliary body (30) and the neck (10) a constraint both to the relative rotation and to the separation thereof. |
