... ,000kg/h 3.Shape: ball, oval,pillow... Double-roll type press machine:This machine is specially designed according to the characteristics of charcoal ... or oblong type charcoal ball.4. The products have high density, high strength, and high hardnessBall press machine working principle:1. Charcoal ... /h)T2902905.51-3T3603607.54-6T430430156-8 ball shape Double-roll type press machine for charcoal powder