| 摘要 |
<p>Correspondence binder consisting of at least one sheet of cardboard and a support rail attached to one edge of the cardboard. The support rail consists of a plastic material (3) and is extruded on both sides to the board (1), enclosing its edge area. The board is fitted with holes in the area extruded by the plastic material, which are filled by the plastic material. Suspension hooks are provided on the ends of the support rail.</p> |
