The products are featured by high hardness, big density, low wear lost, good nomalization, good corrosion-resistance etc. They are the most ideal high-efficient grinding media for milling glaze materials, and various powdered ore, they are using ceramics, cements, paints, refractories, inorganic mineral powders and other industries.

A) Alumina contain (%): >99
B) Water absorption(%): <0.02
C) Bulk density (g/cm3; ): >3.6
D) Mosh hardness: > 9
E) Color: White