Property: The microcrystalline wear-resistant alumina ballstone is a high-quality grinding medium made of selected high grade materials, advanced molding technology and calcined in high-termperature tunnel kiln. Possessed with high density, high hardness, low wear, good seismic stability and good corrosion resistance, the products are the most ideal medium for grinding glaze, blank and mineral powder processing, and are used as the grinding medium of ball mill in ceramics, cement, paint, refractory, inorganic mineral powder and other industries.