| 摘要 |
PROBLEM TO BE SOLVED: To provide a packaging container which can prevent dusts from entering the packaging container and further is superior in assembling efficiency. SOLUTION: There are provided a barrel segment having eight side surfaces including longitudinal side surfaces 1, lateral side surfaces 2 and corner side surfaces 3 and having its upper and lower segments opened; a pair of inner flaps 4 forming a shape coinciding with the opened segments; and a pair of outer flaps 5 constituted to cover the inner flaps. The outer flaps 5 are cooperatively arranged with the continuous three sides surfaces in the eight side surfaces and a connected segment between the two side surfaces at both ends in the three side surfaces is provided with bending segments 5a folded inside when the outer flaps 5 are bent.
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