| 摘要 |
PURPOSE: Provided is a mattress which contains several cylindrical high density polyurethane foams inside and twin coil springs being inserted into the foams, making the weight distributed evenly. It makes sleeping comfortable so that stress and fatigue are recovered. CONSTITUTION: The mattress comprises: a latex foam inside the cover; several high density polyurethane foam(31) holed with air circulating part(31a) inside the latex foam; and metal coil springs(32) composed of independent twin springs(30) inside the polyurethane foam(31).
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