| 摘要 |
<p>The mattress comprises two layers of foam(1, 2) between which is a layer of cylindrical components(3), whose axes extend across the bed and comprise wooden stiffening members(4) running in this direction. The cylindrical components can comprise one or more layers of foam material of sinusoidal profile in the lengthwise sectional view, typically comprising two layers of foam material with their flat sides towards each other and glued together.</p> |
