| 摘要 |
PURPOSE: A bulletin board using a wall is provided to fix a note through magnetic force between a magnet and a steel plate because of having the steel plate between concrete wall and wallpaper, thereby improving space efficiency. CONSTITUTION: A bulletin board using a wall comprises a note, a concrete wall, a metal sheet, and wallpaper. The note contains memo text. The concrete wall is strong and hard. The steel plate consists of steel. The wallpaper is attached to wall. The steel plate is attached between the concrete wall of a house, and the wall paper.
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