The utility model relates to a box, which mainly refers to a box for packaging. It mainly includes a base, a frame, and a top plate. The frame is composed of at least two sets of thin steel plates arranged side by side and connected to each other. The first set of thin steel plates is provided with an upper thin steel plate and a lower thin steel plate, and at least two sets of the steel plates are arranged side by side. One or both of the upper and lower ends of the steel sheet and the outer ends of the two-step steel sheet are polymerized and attached to the connection elements. Therefore, the strength of the packaging box is increased, and the stack storage space is small.
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