1.100% Asbestos free 2.high quality of natural cellulous from Canada 3. ... -isolation, Easy operation & Long-serviceNon-pollution:Environmental-friendly, 100% non-asbestos, non-formaldehyde, non- radiation.Fire-proofing: Ingredients of raw materials ... sawing, shaving and drilling, mildewproof, mothproof, anti-aging. 100% non-asbestos fiber cement board