... 1.Operating principle Powder mills equipment . The materials got into the pulverizing room from the upper feed port, at the cross ... materials being crushed be discharged by the lower part, he lower part of the porous sieve can use holes of ... pigments, metallurgical, mining, building materials, ceramics, plastics, carbon, additives, feed and so on.4.Technical parameters Parameters/ModelSF-200SF-300SF ...