... aluminum ceiling Specification1,Style: plain, perforated, lay-in, clip-in or special order2,Surface smoothness, environmental friendly,elegance, ... , 300x600, 600x600,600x1200mm…customizedThickness0.4-0.8mm,on requestHeight17mm,20mmSurface treatmentBrushed/frosted,powder coating,roller coating( ... ,laboratory,exhibition hall,airport and so on clip in suspended aluminum ceiling board 300x300mm