| 摘要 |
<p>An energy absorbing unit, for example a bonnet which has an outer and inner skin on a thermoplastic core, the core having greater compression strength in the direction perpendicular to the skins than in the direction parallel to them. One of the skins is bonded by heating the core and the other by heating and/or adhesive. Protection against hard points underlying the vehicle bonnet is provided.</p> |
