| 摘要 |
<p>Plate-like sound-insulation element for rooms, especially offices, has a corrugated surface (1) facing the inside of the room. Preferred Features: The corrugated surface is grooved. The grooves (2) form an angular pattern, preferably a square pattern. The depth of the grooves is the same as the height of the corrugated surface. The sound-insulation element is made of a melamine resin foam. The sound-refracting elements are arranged in the grooves.</p> |
