1) fiber cement board 2) Non-pollution: 100% non-asbestos, 3)waterproof, soundproof, insect-proof DescriptionCalcium Silicate Board / ... .Property:ISO 9001; CQGC; CNAS waterproof, soundproof, insect-proofNon-pollution: 100% non-asbestos, no VOC gas, and no radiation.Fireproof: Incombustibility ... -1.25g/cm32440×1220×6 -25mmNon combustibility: Class- A (A1) 2013* 100% non-asbestos fiber cement wall board