... below 6%, such as barite, calcite, feldspar, talcum, pencil stone, marble, coke, powdered-coal, dolomite, fluorite, active carbon, betonies, ceramiciron ... out through the output-powder pipe as the final products.Professional 4R Raymond Mill Professional 4R Raymond Mill Technical ... change is subject to the Professional 4R Raymond Mill products. Professional 4R Raymond Mill for barite,glass,limestone ...