... ISO9001,ISO14001 2)waterproof,sound absorbing,fire resistance 3)environmental protection 4)easy to install ceiling tiles: Specifications of ceiling tiles: Thickness:5mm ... 6m,7.2m,7.5m,8mFeatures of ceiling tiles: (1)High intensity, aging-resistant, fireproof, waterproof, acid resistance (2)High shiny surface ... hospitals, schools, cooking rooms, washing rooms and etc indoor decoration PVC ceiling tiles