A decoration workers, one day shop ceiling can lay the number of square light steel keel?
This depends on the professional skills, but also depends on the size of the room, the general 1000 square meters of the ceiling, keel plus gypsum board all good, 40-50 workers
It depends on his hands and feet speed, and if it is integrated top in 15 or so normal
If the light shop keel a day 20 square meters with the play like
