... Antirust, fireproof, dampproof, easy to intall Aluminium exposed T grid:Size and specification (mm)TypeSize and SpecificationU-shaped Main ... .4-0.7mm) Advantages of Aluminium T – bar (Suspension System, Aluminium T – bar, Aluminium T – grid ,Aluminium Profile, Aluminium Keel , Aluminium ... as 0.5mm-0.9mm5.It is widely used for ceiling decoration in shopping centres, hospitals , hotels ,public places ...