摘要 |
<p>The board has a longitudinal and central core arranged between upper and lower assemblies, respectively, formed of an outer protection layer and a slider. The assemblies comprise respective longitudinal reinforcements, where each reinforcement has a textile structure that contains high tenacity synthetic linen fibers. The linen fibers are threaded within longitudinal linen yarns (23), where average distance (d) separating the yarns ranges from 0.5 mm to 2.5 mm. The yarns cover 20 to 80 percent of a surface of a zone extended from a surface area of 10 square cm of the reinforcement.</p> |