| 摘要 |
<p>The constructional component is assembled from wooden pieces, being in the form of a wall panel or door. It comprises a number of parallel profiled pieces (1), each with one or more transverse holes through it. A transverse piece (2) extends through these pieces, fitting closely in the holed in each. The hole or holes in each of the outermost profiled pieces can be blind ones, and each profiled piece can have a tongue or groove. The groove depth is at least equal to the tongue height, while its width increases in steps towards the outside.</p> |
