... (white 90%,strength 2.7MPa) 2)Fireproofing,dampproof,mildewproof,soundproof Ceiling ornament 1) Material: special grade of gypsum (whiteness: >90°, breaking ... : 2.7MPa/2 hours, no impurity), fiberglass, hollow fiber2) Finish: drying by oven. Smooth surface, clear flower pattern, obvious three-dimension ... separate pieceOuter of each package in 3cm air bubble film Ceiling ornament