... a separated structure between inner piping and mixed air and powder. The efficiency and precision of classifying is promoted ... , iron ore, copper ore, phosphorite, ferric oxide(red), zirconium, slag, active carbon, dolomite, granite, ferric oxide(yellow), bean cake, fertilizer, compound fertilizer ... non-explosive, with Moh’s hardness below 9 and moisture below 6%.Main Technical Data:Model Specification ...