... selling air classifier for zicron,caco3,sic powder,etc. 1.structure of air classifier :the whole set classifier of our classifier T7826 ... for classifying kinds of materials, such as carborundum, Caco3,talcum powder, zircon powder, carbon black, activeted carbon ,etc. the hardness should be ... classifier!! 2013 hot selling air classifier for zicron,caco3,sic powder,etc.