... below 6 percents and Mohs hard Raymond mill Color: any color is avaliableUsed for : Raymand millType : RMotor: ... day. For low consumption, low investment, environment friendly, small occupation area, and more efficient than ball mill. ... 7, humidity less than 6%, such as gypsum, talc, calcite, limestone, marble, feldspar, barite, dolomite, granite, kaolin ... .165371.8-4.515 high efficiency Raymond Mill