| 摘要 |
<p>A suction molded composite board which can be used as a seat plate(2) or a backrest plate(3) is composed of an upper cover board(21,31) and a lower base board(22,32) which are made by suction molding. The edges(210,220,310,320) of the upper cover board and the lower base board are connected with each other to form a flat seat plate or a backrest plate of a chair. Several support members are distributed between the upper cover board and the lower base board to keep a certain distance between them. A connecting member is prefixed at the side of the seat plate or the backrest plate or the place which is needed to be connected. The invention is convenient to make the seat plate or the backrest plate having various curved surfaces.</p> |
