| 摘要 |
<p>The movable marking holder is made of plastic, and has a frame (2) and plastic plate strengthener, where both are automatically locked by pressing together, so that the opening is permitted after the locking only by pulling a spring plate. The spring plate is fastened on the frame by an angular deflection and is bent downward in inclined manner by another deflection. The frame and the plastic holder are pressed together before locking, by which the spring plate is pressed outward and rests in a cavity.</p> |
