| 摘要 |
<p>A device includes an upper part (8), an assembly (11) for piercing the upper surface of a bag (1) and injecting water, and a lower part (2) with protruding and recessed elements (19) and outflow holes (20). Each of said parts defines substantially half of a cavity determining the final shape of the bag, and the parts are pressed together by auxiliary fastening members (3, 7) secured to the upper part and lower part respectively.</p> |
