... of abrasive, refractory and ceramic raw material (i.e., alumina, silica, carbide, magnesite, quartzite, etc), ultra high purity quartz cleaning, graphite upgrading ... iron silicates from limestone or magnesite, glass raw materials cleaning silica sand, quartz, feldspar, dolomite, etc.Technical ParametersSpecifications2-RGC752-RGC1002-RGC1202 ...