Roman Pillar 1)special grade of gypsum (whiteness 90%, strength 2.7MPa) 2)Fireproofing,dampproof,mothproofing,soundproof Roman Pillar Features:1) Material: special grade of gypsum (whiteness: >90°, breaking strength: 2.7MPa/2 hours, no impurity), fiberglass, hollow fiber2) Finish: drying by oven, smooth surface, clear flower pattern, obvious three-dimension effect, high strength, and excellent ...