| 摘要 |
<p>The element has an exterior skin resistant to corrosion and an interior skin or ceiling having the same transverse section, parallel to, and under the exterior skin. Both skins are made of precoated aluminium or aluminium alloy. Between the skins there is a continuous framework of metal profiles or plates extending from element edge to edge giving the element self load bearing properties. A pad of injected insulation material fills the space between the skins, and surrounds the frame, developing good qualities of adhesion and fire resistance.</p> |
