According to the different application areas, non-metallic mineral milling is generally divided into coarse powder processing (0-3mm), fine powder processing (20 mesh -400 mesh), superfine powder deep processing (400 mesh -1250 mesh) and powder processing (1250 mesh-3250 mesh) four types.
 

Kefid in the absorption of foreign advanced technology on the basis of the company for many years the design concept and market demand for research and development made by the MTW Europeanl grinding mil, VM vertical grinding mill, TGM super pressure trapezium grinding and other milling equipment, professional for All kinds of non-metallic mineral grinding and upgrading, its performance has reached the international advanced level.