Most used in industry is muscovite, which are widely used in building materials industry, the fire industry, fire extinguishing agents, welding, plastics, electrical insulation, paper, asphalt paper, rubber, pearlescent pigments and other chemical industries. Ultra-fine mica powder for plastics, coatings, paints, rubber and other functional fillers can increase the mechanical strength, enhanced toughness, adhesion and anti-aging and anti-corrosion type. In addition to very high electrical insulation, anti-acid corrosion, flexibility, toughness, and sliding resistance, heat insulation, thermal expansion coefficient and other properties, but also the first to introduce chip and Two smooth surface, radius to thickness ratio, regular, with with strong characteristics.