Detailed Product Description Description: The tiles are manufactured from high density fiberglass wool.The visible face has a decorative fiberglass tissue and the back of the tile is covered with normal tissue.The four edges have grooves being tegular shape and are sealed. The tiles will be lower than the suspended system after installation.Installation method:Use exposed grids,grids width:15mm or 24mmTiles are easy to trim and installBoth inches andmetric grids are availableMain Characteristic:Non-combustibleNo sagging,wrapping or delaminatingGreen building materialExcellent sound absorptionApplication:Halls,classrooms,offices,shopping centers.etc.