... Screen Separator 1.Complete structure 2.Mainly used to fine powder 3.1 year warranty 4.ISO9001:2008 Rotary Screen ... material. 3.Food industry: sugar, salt, alkali, gourmet powder, starch, milk powder, bean milk, yeastsmust, pollen, food additive. 4. ... zinc oxide. 6.Mechanical industry: casting sand, powder metallurgy, electromagnetic material and metal powder. 7.Others: carbon black, light calcium, ...