Particularly suitable for vertical stirring mills, horizontal roller ball mills, vibrating mills and various high linear speed pin-type sand mills, for wet or dry ultrafine dispersion and grinding of pastes and powders requiring to refuse cross contamination. Its application includes: 1.Wear and corrosion resistant product: coating, textile, pigment, dyeing 2.High strength, high tenacity product: magnetic material, piezoelectric ceramics, dielectric ceramics 3.Pollution prevention: medicine, food, cosmetics 4.Ceramics: electronic ceramics, refractory ceramics, structural ceramics