1,excellent and high strength building material 2,CHINA FAMOUS BRAND 3,COUNTRYWIDE ENGINEERING BUILDING MATERIALS TOP ... grade of gypsum (white:≥90oC, breaking strength:2.7mpa/2hours,no impurity),fiberglass ,hollow fiber.2,Finish:drying by oven ,smooth surface ... ,clear flower patter,,obvious three dimension effect ,high strength,and excellent ...