China Ball Mill . 4.It is especially suitable for the grinding of slag fine powder, steel slag fine powder, super-fine fly ash with specific area up to 5.500~700m 2 /kg. 6.It has been successfully applied to the grinding of iron oxide powder (average size ≤ 6μm), desulfated limestone ( 400 mesh)and superfine cementing materials(600~700m 2 /kg).
