Non-asbestos calcium silicate boards Size: 595*595*4-8mm, 600*600*4-8mm, 1220*2440*5-12mm Non-asbestos calcium silicate boardsSpecification: 595*595*4-8mm, 600*600*4-8mm, and 1220*2440*5-12mmMaterial: crystal stone, cement, silica sand and cellulose fiberCoating the surface of new type of high-tech environmental protection paintDensity: 1.3g/cm3Class A non-combustible fireMoisture: lower than 12% ...