To open a gypsum ceiling to a person through the hole to the top of the cement ceiling drilling, so how to repair the gypsum ceiling after opening
You can cut the gypsum board made of check mouth
Cutting machine cut rectangular, after the aluminum alloy edge, and then cut the size of the mouth cover, still aluminum alloy edge
Is it in the center of the room, in the center, or where the location is right, you can install a large chandelier.
