| 摘要 |
The present invention relates to a finishing board which includes: an external plate formed of natural stone and having a certain size and a certain thickness; a reinforcing plate corresponding to the external plate and attached thereto; and a base plate larger than the external plate and attached to the reinforcing plate. The base plate has a plurality of cross-sectional upper recesses which are open upward, and a plurality of cross-sectional lower recesses which are open downward. A plurality of the cross-sectional upper recesses and a plurality of the cross-sectional lower recesses are disposed alternately and continuously, thereby forming a vertically symmetrical honeycomb structure. Accordingly, the strength of the base plate and the finishing board is improved, and the weight thereof is decreased. In addition, the upper and lower structures of the base plate are stably balanced so as to prevent the deformation of the base plate, thereby improving the adhering force thereof. |
