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[Name]: Multilayer file storage bag a4
[Material]: Oxford cloth + thick pp inner layer + polyester lining
[Organ layers]: 12 pages and 13 grids
[Organ Specifications]: A4(33.5*26cm)
[Thickness]: Freely adjustable, about 2 to 25cm
[Use]: Storage of student test papers, drawing paper, books, and office contract instructions
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