... heat treatment, etc. Not only the single machine (crusher, mill, dryer, etc.), but also the whole production line (rock ... hardness less than 7 level an the moisture less than 6%, such as barite, calcite, potash feldspar, pencil stone, ... Crusher, Compound Crusher, Box Hammer Crusher, Feeder, Ball Mill, Rod Mill, Raymond Mill, Conveyor, Vibrating Screen, Flotation Machine, Magnetic Separator, Shaking ...