| 摘要 |
The present invention relates to an arch-shaped sandwich panel which can be easily bent in an arch shape to be used. On one side of a metal plate and an insulation material, grooves are formed in the direction perpendicular to the direction in which the metal plate and the insulation material are bent. Therefore, when the panel is bent, the metal plate is widened or narrowed; and thus the panel is easily bent in the shape of an arch. |
