... cement board 2. 100% non-asbestos 3. plank 4. thickness: 7.5mm, 8mm, 9mm fiber cement sidingMain characteristics:1. Beautiful appearance2 ... 2440mm, 1220 x 3660mm, 210 x 2440mm, 210 x 3660mmthickness: 7.5mm - 12mmother size and thickness also available.product data:1 ... /m.k6. Fire resistance: incombustibility A class( GB8624-A class)7. Radioactivity: conforming to GB6566-2001 A class 100% non-asbestos ...