| 摘要 |
<p>Board material and process for the manufacture of same. The board material consists of two surface layers and of a honeycomb structure placed between them. The direction of the cell walls (1,2) in the honeycomb structure forms an angle relative the direction of the surface layers. The honeycomb structure is composed of an originally porous material saturated with resin. Most appropriately, the honeycomb structure consists of corrugated fibreboard, whereat the cardboard layers (1,2) in the corrugated fibreboard are substantially perpendicular to the surface layers in the board material.</p> |
