... the acid resistivity, alkali resistivity, chemical stability,heat durability, incombustibility and excellent insulation. It has an increasingly widespread applications in various ... snowMed-coarse flakes10Christmas ornaments, display materialFine-coarse flakes16Concrete block fillers, refractory bricks, gypsum wallboardsCoarse-fine powder30Metal annealing, absorbent in explosives, disinfectants, ...