| 摘要 |
<p>The notice board which completely protects the notice, enclosing it both sides, has a backing plate (1) of grid construction and a frame (2) whose cross-section is similarly to the periphery of the backing plate. These are clamped together by four U-shaped strips (3), one for each side. The strip incorporates an interior rib (6) forming a gap (20) between the plate and the frame. By removing one strip, the notice (8) and a transparent sheet (9) one side, and a backing sheet (10) the other side, can be inserted. The grid plate has holes for securing screws for wall mounting.</p> |
