(57) A lid is described for flexible or semi-rigid containers, particularly for granular
or powder products, of the type having a substantially parallelepiped shape, with
a top aperture (3) defined by a reinforcing frame structure (6), said lid being of
plastic material, of the stopper or hinged type, with a substantially flat upper plate
(7), a skirt (8) engaging with the outer top edge of the container (1) and an inner
skirt (9), continuous or discontinuous, running parallel to the outer skirt (8) and
engaging with said frame (6).
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