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Our leading products have crushing equipment, sand making equipment, mobile crusher;The products includes five series: crusher, sand making machine, powder grinding mill, mineral processing equipment and building materials equipment.
Ball mill device britannica other articles where ball mill is discussed: explosive: manufacture of black powder: this device is called a ball millthe saltpetre is crushed separately by heavy steel rollersnexta mixture of several hundred pounds of saltpetrecharcoaland sulfur is placed in a heavy iron device shaped like a cooking panthere it is continuously turned over by devices called plows,.

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