| 摘要 |
<p>A plug (11) comprises a reclosable protective cap (13) having a smaller diameter with respect to a base collar (14) in steps, arranged on a screw neck (12), the protective cap and the base collar being connected through a hinge element (16) and a series of freely breakable elements (18), the plug comprising inside it a pouring element (19), the protective cap (13) and the base collar (14) being moulded, in closed position, in a single piece that is separated by the pouring element (19), wherein between the first step portion (14a) and the second step portion (14b) of the base collar at least one further breakable element (29,29') is foreseen, connected on one side to the cap and on the other side to the first step portion and that stretches and breaks in elongated position the first time the cap is opened from the base collar.</p> |
