Kefid has three kd of roller mill for sale. The ore mill, coal mill, and slag mill. The price of everyone is different, please contact us for more formation. Roller mill is widely used mg, chemical ,metallurgy dustry, which can grd the carborundum, zirconite, quartz, granite, barite, marble, limestone, talc, gypsum, slag, porcela, glass and other more than 200 kds of materials. And it has the features of: 1.