2013 Hot Sale Energy Saving Ball Mill Machine 1.ISO9001 Certificated 2.High Efficiency 3 ... shall be evenly charged through quill shaft in feeding device into the first bin, which has step ... parts(like redactor,minor rotation gear,motor,electric machine,etc). Hollow axis is made of steel parts ... wearing plate with fine wear-resisting property. This machine runs stably and reliably. Based on difference of ...