1.Our products passed usa astm test and european ce certification.100% non asbestos, no formaldehyde and other harmful substances.Which is made of white, multicolor high strength silicate, natural fiber and mineral powder, environment protection; 2.Fireproof, waterproof, mothproof, high strength & durability, sound insulation and absorption, our products are applicable to all kinds of environment; 3.High cost effective, easy processing, dry construction, fast installation; 4.The diversity of colors and patterns, we can produce according to the ethnic architecture style in the world and also can customize designs; 5.Impact resistance, frost resisitance, sound insulation, barrier strong noise, weather resistance, good durability, service life of 50-70 years. Length:3000mm Width:615mm(insluding 15mm groove) Thickness:14-16mm -