... ,higher in strength. The quality is stable. ProductS Detailed DescriptionAlumina ceramic ball have three levelslow,medium,high.PropertieS lower in wear ,higher ... in strength. The quality is stable.DetaileS The alumina ceramic balls are featured by high hardness, big density, low wear ... , cements, paints, refractories, inorganic mineral powders, and other industries. Alumina ceramic ball