Low Power Consumption Steel Ball Mill for Grinding Copper Ore. US $ 10,000-100,000 / Piece FOB. MOQ: 1 Piece. Since 2011. Main Products. Rotary Kiln, Ball Mill, Active Lime Production Line, Cement Production Line, Magnesium Calcined Line, Rotary Dryer, Conveyor Sysetm, Bag Filter, Beneficiation Line, Ceramic Sand Production Line.