... hardness is below 9 class, and humidity is below 6%., and theyshould be nonexplosive and nonflamable mining materials. The final ... are just for you consultation.They are cement(raw meal and cement clinker), quartz, feldspar, calcite, gypsum,limestone, ... metal, ferromanganese,coal, gangue, slag, zirconium, steatite, granite, orthoclase, marble, barytes,ceramics, glass, etc.The zenith grinding mill main ...