... lightweight,high rigidity 2,easy install and clean 3,fireproof,anti-rust,moistureproof 4,brushed surface 5,ISO certificate aluminum ceiling,aluminum ceiling ... and disassemble,simple structure,good adhesion,anti-corrosion, fireproof,waterproof,rust proof,weather resistance,easy cleaning,sound absorbing, heat ... ,laboratory,exhibition hall,airport and so on suspended aluminum ceiling board 300x300mm