... .25Non-combustibilityGB 8624 :1997Class APlate edge straightness mm/mm ≤1Plate edge vertical degree mm/mm ≤2 Name Calcium silicate board Color White ... (no asbestos) Standard Specification 1220*2440*(6-12)mm1200*2400*(6-12)mm(other size also available)Packing Wooden palletTrade ... Light weight ,Easy for construction, Reducing Project Costs.6.Eco-friendly,non-formaldehyde,not radioactive,None of hazardous ...