PCT No. PCT/DK80/00079 Sec. 371 Date Jul. 20, 1981 Sec. 102(e) Date Jul. 20, 1981 PCT Filed Dec. 5, 1980 PCT Pub. No. WO81/01694 PCT Pub. Date Jun. 25, 1981.A box for instance for storing powder and comprising six side walls. At least three of said side walls are extended to form the top and/or the bottom cover with at least one panel connected with the three side walls. This panel comprises a central main flap and two pairs of side flaps connected thereto through folding rims. These side flaps comprise an oblique triangular rigid portion extending from the main flap and abutting the side walls and furthermore forming an inner obtuse angle therewith, whereas smaller triangular flap(s) in the closed position abut the side walls in question an in case of the bottom cover preferably and are connected to these side walls through folding lines, the main flap being connected to both adjacent side walls. A cut and scored blank is also provided for producing the box. In this manner a tight and simple box is obtained.
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