| 摘要 |
<p>This folder consists of a rectangular upper (1) and lower (2) cover, a folding back-counterfoil (3) and a perforated slip-holder (4) which is attached in a flexible manner parallel to the joining section of the upper cover (1) and folder counterfoil (3). For holding the paper, a flexible band has to be inserted in the holes with its ends coming out over the bottom surface of the slip-holder (4).<IMAGE></p> |
