| 摘要 |
A liquid-absorbing, rot-, chemical-, and skid-resistant mat fastened to an inner folding frame held in place within the area of use by an outer frame adapted to be secured to any surrounding wall. The inner frame is foldable and includes attachments by which the frame and mat, after being folded over itself, can be removed from the area of use by an overhead cabling or on a specially fitted wheeled trolley.
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