1,light alloy,high rigidity 2,easy install and clean 3,fireproof,anti-rust,soundabsorbing ... 300x600, 600x600,600x1200mm…customizedThickness0.4-0.8mm,on requestHeight17mm,20mmCoatingPowder coating,polyester powder coating(10 years guarantee)ColorWhite, blue, pink, yellow...customizedFeatureEasy install ... room,laboratory,exhibition hall,airport and so on roller coating aluminum ceiling board 300x300mm