| 摘要 |
Box spring with plastic band support for mattress consisting of a frame (1) and a set of bands (2) made of extruded plastic positioned one by one so as to enclose the frame (1), tightened mechanically under a specific tension and joined at their ends by heat sealing, the majority of the bands being arranged transversely on the frame (1) but with some bands longitudinally arranged and interlaced with the former.
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