... and high strength building material 2,CHINA FAMOUS BRAND 3,COUNTRYWIDE ENGINEERING BUILDING MATERIALS TOP BRAND 50 1,Material: special grade ... of gypsum (white:≥90oC, breaking strength:2.7mpa/2hours,no impurity), ... ,clear flower patter,,obvious three dimension effect ,high strength,and excellent costructive performance,it is fireproof,mildew and ...