Powder mill,roller mill,grinding machine: 1.ISO9001:2000 2.Price:negotiable 3. ... and 2500 (5 micron) meshes.The machine is used for grinding the barite, limestone, kaolin, ceramics, and slag, etc, ... large centrifugal force, which scatters bulk materials evenly in grinding intermediate layer between central roller and ring. The bulk ... our web in English:http://www.mineral-grinder.com grinding mill