Aluminum alloy grille ceiling above do not do light steel keel ceiling?
Have to do, or aluminum can not install the grid, that is, do not look good, small room allows them to do only on both sides.
Aluminum grille above the general do not do light steel keel ceiling, with aluminum alloy keel
If the budget allows, it is best to do keel, because the main purpose of the keel is to find flat, so that the beginning of the ceiling to see the flatness is very good, again, for the maintenance of the later flatness is also helpful