| 摘要 |
<p>The structure has a synthetic matter plate (1) extending along a longitudinal axis (X'-X) and presenting a square longitudinal cells network. Three transversal grooves (2) are arranged in the plate so as to form four side panels (3) mobile between a storing position and a folded position, where each transversal groove is provided with a V shaped longitudinal section. The plate is made of alveolate polypropylene, and is provided with a base panel that extends along a longitudinal edge of one side panel. A removable lid is provided in a reservation box. An independent claim is also included for a reservation box for a concrete flagstone.</p> |
