Ball products are micron superfine alumina powder, with a high temperature, wear, corrosion resistance, high hardness, high insulation, high thermal conductivity and other properties. Spherical alumina with high purity, good appearance, good stability and narrow particle size distribution, with a minimum fill volume with a higher thermal conductivity and other characteristics of spherical alumina products are mainly used for electronic materials, thermal conductivity insulation materials, special ceramics and other fields. In the heat resistant filler, electronic ceramics, and polishing materials, high-grade abrasive, rare earth phosphor powder, high pressure sodium lamp, transparent ceramics, ceramic chip, ceramic fiber, synthetic gems, is widely used catalyst support and other fields, can be used as micro- hole ceramic, ceramic membrane materials, especially for rubber, plastic filler, with a low viscosity, good fluidity, high filling, low wear, high purity and other characteristics. Main functions: heat resistant packing: thermal grease, thermal adhesive, thermal grease, thermal film.