... 4.high temperature resistance. High effiency rotary dryer for the whole world The scope of using: 1: ... metal powder, clay, diatomite, kaolin. 2: Agriculture, feed, fertilizer industries, such as stalks, grass, sawdust, leaves, fish meal, ... food factories, slaughterhouse waste, organic fertilizer, inorganic fertilizer, phosphate fertilizer ammonium sulfate. 3: For the drying of the powder with special ...