... below 7 and moisture content below 6%, such as barite, calcite, feldspar, talcum, pencil stone, marble, coke, ... , gold mine, porcelain clay, plaster, limestone, clay, glass. Raymond mill can be used in mining, construction, chemical ... through the electro-magnetic vibrating feeder evenly and continuously into the grinding chamber for powder-processing ... 4R Raymond Mill for barite,glass,limestone,marble