| 摘要 |
A door leaf of a door in a building, the door leaf comprising a skeleton (2) having vertical and horizontal skeleton parts, on a first side of which skeleton (2) there is arranged a first cover plate (5). The first cover plate (5) has a layered structure and comprises a first, metallic front cover plate (6) arranged away from the skeleton and a first composite plate (7), arranged on the rear side thereof and made of a material mixture containing thermoplastic material and filling material of plant origin. |
