... a clean, professional look when installed. The non-corrosive aluminum construction of this system is ideal for high humidity ... Hallway ,Kitchen etc Specification Grille ceilingProduct:Aluminum grille ceiling, grille ceiling, metal grille ceilingMaterial:high quality Aluminum alloySize:10*40, 15*50mm,20 ... ,supermarket,school,corridor,toilet,hospital,re-decoration works. Aluminum exposed grid ceiling