Aluminum ceiling tiles in clip-in/lay-in/hook-on system 1)wide range size and perforations. 2)fire proof . ... Aluminum ceiling tiles in clip-in/lay-in/hook-on system description:Material: aluminum alloy.Surface: powder coated / PVDF coated / ... buildings, supermarket,hotel, railway station, museum, exhibition center, airport, metro station,school, sports center and etc. Clip-in ceilings: Lay-in ...