... supplied)Raw ingredients Siliceous material,calcareous material,plant fiber(no asbestos) Standard Specification 1220*2440*(6-12)mm1200*2400*(6-12 ... ,Easy for construction, Reducing Project Costs.6.Eco-friendly,non-formaldehyde,not radioactive,None of hazardous substance, safe use.Applied ... fireproof.8.Hutch defends door plank and advertisement signs etc.. non-asbestos calcium silicate board ceiling