Copper stone grinding machine -Lubrication with thin oil station -Shell:Q345, 25mm -Wet & dry ... concentare machine. Henan Hongji is processional in Cu, Au, Ag, Fe, Mn, Mo Pb, Zn etc mineral separation and upgrade project for ... . 3000x4500 ball mill in customer site for Copper grinding Structure of Efficiency ball mill, stone grinding machine is composed of feeding part, discharging ...