| 摘要 |
PURPOSE: A linear supporter is provided to construct and maintain the linear shape of the framed corner of the ceiling in a staircase precisely. CONSTITUTION: The linear supporter is installed on the corner where horizontal plywood and inclined plywood of a stair floor form at framework, used for all corners of the skeleton of the ceiling in a staircase at framework and made of wood, synthetic resins, plastics, steel, or other various materials. |
