| 摘要 |
<p>The button (10) has a female element formed of annular wall (16) and front wall (19) with an axis, and a male element formed of a sealing and fixation wall (18) and a stud received in the female element. The male element forms a chamber (20) with the female element to receive a fluid product. The chamber emerges towards outside through passages (21). An annular distribution interface is defined by an inner surface (16a) of the female element and an outer surface (18a) of the male element, where the passages are placed in the interface and the surfaces are is in contact between the passages.</p> |
