| 摘要 |
<p>The structural element has a sandwich construction with two outside shells which are solid in their surface area and enclose inside a foamed layer (21) which is fixedly connected to the outside shell area. A mat of metal threads is embedded in at least one of the outside shells and runs substantially parallel to the surface area. The mat can have openings across its expansion so that plastics material can penetrate these openings and fill them up.</p> |
