| 摘要 |
The development consists of a body with a carrier frame (3) and side walls (4) with rollers (12,13), e.g. parallel cylindrical rods, mounted in the side walls, whereby all parts of the body are made of metal or plastic and synthetic material. The arrangement also contains a rectangular panel (21) or set of panels with fixed adapters, one surface on the rollers and the other for loading, whereby the adapters have one end in the body and the other in the panel.
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