| 摘要 |
The ceiling box (1) has a circular cylindrical part (2) together with connections (3-12) for coupling pipes with carry cables to and from the box. Two diametrically located fixing columns (14, 15) are positioned axially on the circular cylindrical part side, with the first ends of the columns anchored in the ceiling construction. Inside the circular cylindrical part at its mouth is arranged a movable fixture ring (13) intended for suspension of electrical appts. or a ceiling plate, and the other end (14', 15') of the fixture column locates above a part of the fixture ring external surface. |
