1.fireproof level is A 2.High Grade and high strengh Mgo Board 3.China Trusted Brand. World Leading Brand Specifications 1.Can be sawed, nailed, shaved, drilled, hanging, punched without defromaition2.Moisure&bump resisitant 3.Asbestos freeProduct Description 1) Sizes: 1220*2440, 1200*2400, 1200*2250, 1200*2280, 1200*2700, 1200*3000 2) Thickness: 3mm to 20mm Other specifications available 3) ...