ASARCO » MillingThe primary crusher may send the crushed ore on to a secondary crusher or pile it directly onto the coarse ore stockpile.TOUR NOTE: On your tour . These mills contain literally hundreds of thousands of three-inch diameter steel balls that pulverize the ore until it is like fine sand or face powder. Only then are the copper.crushed ore powder mills,crushed ore powder mills,manufacturers grinding crusher - line mill, stone mill,mining .European Type Jaw Crusher. V-shaped crushing chamber, Tooth-type guard board European Ty . MW Series Micro Powder Mill. Little abrasion, Low noise, Little dust MW Series Micro Powde . Magnetite ore crushing & pr · Pebble crushing processin.