| 摘要 |
<p>System for plugging an opening, comprising: - a plug element designed to cover said opening, - a frame, which is made up of at least four uprights (1'), is intended to be positioned inside the opening and has a first groove (22) formed on a front wall of each upright, and - a seal (29), said first groove (22) being intended to house a substantially peripheral part (27) of the plug element, said seal (29) being designed to be housed with a tight fit in a retention means (34) that is inserted into said groove (22) and retains said plug element on the frame.</p> |
