... 000kg/h 3.Shape: ball, oval,pillow... Double-roll type press machine:This machine is specially designed according to the characteristics of ... density, high strength, and high hardnessBall press machine working principle:1. Charcoal ball press can press charcoal powder, charcoal dust, coal powder, ... h)T2902905.51-3T3603607.54-6T430430156-8 ball shape Double-roll type press machine for charcoal powder