. . . "XBM Widely Used Mineral Raymond Mill For Marble/Dolomite Type: Raymond Mill Mineral Raymond Mill Application The R Mineral Raymond Mill are mainly used in grinding more than 280 noninflammable and nonexplosive materials with a Moth's hardness below 7 scale, a humidity below 6%, such as barite, calcite, potash, pencil stone, marble, limestone, ceramic, glass and other materials which used in mining" . . . . .