| 摘要 |
The bulk bag comprising a bottom wall, double layer end walls extending upwardly from the bottom wall, double layer side wall portions extending upwardly from the bottom wall and perpendicularly to the end walls, double layer pivotally supported side walls hingedly secured to the side wall portions, stiffening panels received between the double layers of the end walls, the side wall portions, and the pivotally supported side walls, and fasteners for securing the pivotally supported side walls in alignment with the side wall portions.
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