... environment protection Ceiling is mainly used to building materials for steel and T-grids,It is also widely ... Series,Sand SeriesCustomized textures are also welcome if buyer pays for new-mould charges.Benefit and Advantages1, Natural, environmental-friendly ... radioactivity2, Fireproof , anti-corrosion3, Light density with good insulation for heating &sound4, Available to cut , saw. Sound-absorbing ...