... ,bora firproofing ,fire mortar,fireproofing tile2>.Heat preservation and insulation:sound-absorbing material,surken pipe ,greenhouse pipe ... preservation material ,in-built material indoor and tunnel ,wall of public and ceiling3>.Metallurgy :clad material in steel, ... :adsorbent ,filter aid,active carrier of chemicals and fertilizer,sewage disposal,oil adsorption of oceanmcigarette filters,regulate ...