| 摘要 |
<p>This valve is formed in the actual thickness of a wall portion of the capacity. It comprises an inner cavity (2) communicating with the outside of the capacity via a first hole (3), and with the inside of the capacity via at least one second hole (4), and a valve element (5) integral with the capacity and occupying the central portion of the cavity (2). …<??>It is perfectly suited to the closing of inflatable capacities and, in particular, of balloons, which can be inflated and deflated as desired by the user. …<IMAGE>… </p> |
