| 摘要 |
It is disclosed a tray of sheet paper material for containing foodstuffs in which there is a bottom and a side wall emerging therefrom and defining, in cooperation with said bottom, a holding space facing upwardly under use conditions of the tray; the side wall is defined by alternated straight portions and curved portions both having upwardly-facing flat surfaces (7, 9) to allow engagement of a closing film heat-sealed thereto; the straight portions (4) also have reinforcing tabs in engagement at the lower part thereof with the flat surfaces (7) and the tray is also provided with a reinforcing edge (10) folded downwardly along the whole upper perimeter of the container itself. The tray thus made has excellent features of mechanical resistance to deformations. <IMAGE>
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