| 摘要 |
<p>A core (12) extends over a greater part of the slide board. Mechanical reinforcement layers (20,30,40) lying directly or indirectly on the core extends inside a board upturn beyond a front contact line (3) and/or rear contact line. At least one of the reinforcement layers has an extreme longitudinal point located at an intermediate level between the contact line and the extreme point of the board upturn, and has an overall cross-section in a zone defined between the contact line and the point of maximum width which decreases overall moving towards the extreme point of the board upturn.</p> |
