... 3, Surface: Powder coat Materials: Aluminum 1100, H24Finish: Powder or Paint CoatedSpecification: Height: 40, 45, 50, 70 mm Width: 10, 15 ... Hall and Hallway ,Kitchen etc Specification Grille ceilingProduct:Aluminum grille ceiling, grille ceiling, metal grille ceilingMaterial:high quality Aluminum alloySize:10*40 ... ,school,corridor,toilet,hospital,re-decoration works. Aluminum exposed grid ceiling