... The main features of Steel Ball Coal-grinding Machine: (1)Smooth operation(2)reliable performance(3 ... enhance the outputExport country of the Steel Ball Coal-grinding Machine: India, Vietnam, Kazakhstan, Mongolia, Ecuador, Iran, ... Parameters of the Steel Ball Coal-grinding Machine:TypeΦ1700x2500Φ2200x3300Φ2500x3900Φ2900x4700CylinderDiameter1700220025002900Length2500330039004700Abrasive body load7. ...