Which Crusher Is Suitable for Your Hard Rock? | Fote Machinery
3 Sand making and shaping: The finely ground materials enter an impact crusher or a sand maker for the third crushing; 4 Washing: Qualified materials are washed by a sand washer as final product, while the others return to the third crushing process. 4. Andesite Andesite is a kind of volcanic rock, named after its abundance in the Andes of …