Light steel keel ceiling do anti-support angle iron how fixed on the main keel, how fixed on the ceiling surface?
When installing the support material, use the angle iron to drill the hole first in the angle iron, and then use the wire to the angle iron can be tied to the hanging bar, do not need to fix it on the ceiling, the length of the support material, generally to support Of the ends of the hanging ends of not less than 20 cm can be. For example, if the length of the hanging bar is 2 meters, then the length of the support should not be less than 1.60 meters on the two ends of the average points on the line.
Ceiling on the anti-supporting material, you can use metal (such as angle iron), you can also use a small piece of wood, but this depends on the supervision requirements, in principle, can not use wood materials, but sometimes as long as the supervision does not speak, With wood materials can be, but the fire paint or to brush.
