As for the smelting and recycle,the optiimal method,judged currently,is pelletization through cold-rolled balls,which brings higher requirements to the equipment and process technique,during the tens of years in processing ball presses,our plant has collected and designed cold-rolled ball equipment and accessories aiming at the hard products in the metallurgy, Black and non ferrous metal poeder ball press is featured of high applicability,high strength,antifriction and duration.