Grinding Media Grinding media are the means used to crush or grind material in a mill. It comes in different forms such as alumina oxide balls, ceramic cylinders, or soda lime glass. At Norstone Inc., we offer all types of medias used for grinding, deagglomeration, polishing, deburring, fillers, proppants, spacers, refractory beds and shot peening.
Mar 24, 2016· Dreamy Old Mills For Sale. March 24, 2016 March 25, 2016 / oldstonehouses. You can almost hear the wheel slowly cranking, as it lifts water to power the millstones inside. Mill workers hustle about, stacking burlap bags filled with milled seed and shooing away stray cats that have made the stone building their new home.