Decorative plates technical requirements of the project technical requirements please consult Xiaojing Li 18,620,325,252 (18,620,325,252 also telephone) sheet of high density pressure steamed the inorganic cement fiberboard Dimensions deviation thickness (mm) 12mm length (mm) ± 2 diagonal (mm) ≤ 3 edge formation degrees (mm / m) ≤ 2 warpage (mm) ≤ 1 Density (g/cm3) 1.4 1.8 heat shrinkage rate (%) ≤ 1.04 Water Absorption (%) ≤ 1 the swelling rate (%) ≤ 0.1 permeable bottom surface of the water droplets incombustibility meet the A1, A2 grade flexural strength (Mpa) ≥ 25 environmentally friendly 100% asbestos-free