... polishing with one crystal diamond. 300x300x0.5mm aluminum pattern ceiling.Finish: concavo-convex, printing in off whitepolishing with ... diamond. Application: Shopping malls, big buildings, hotels, offices, high-rise buildings,Specifications: 300x300mm, 300x450mm, 300x600mm. Another size is ... white and polishing with one crystal diamond.Quality Control: ISO9001, CE certification. Pattern ceiling tile