high toughness, high-density and high hardness alumina, corrosion resistance and other characteristics of the ... for use in coatings, inks, agricultural chemical, mineral pigment grinding and dispersion. Applicable to the majority of sanding machine. Features ... :1) super wear-resistant zirconium oxide,2) high toughness,3)high-density and high hardness alumina,4)corrosion resistance The application of ...