Direct upper limit

Direct ceiling is to directly spray, plaster or paste decorative materials on the bottom of the floor. (generally used for decoration of civil buildings such as houses and office buildings with low decoration requirements).

crane

Ceiling (ceiling): Because most buildings have fire fighting, monitoring, air conditioning, lighting and other equipment, and almost all these equipment and pipes are hung on the ceiling, in order to hide and achieve the purpose of beauty, the ceiling is formed. It is necessary to bury metal poles in the ceiling structure in advance, and then hang various plates on the metal poles.