... coal powder:1000-10,000kg/h 3.Shape: ball, oval,pillow... Double-roll type press machine:This machine ... mining, coal, refractory, abrasive, fertilizer, ceramics, etc. Ball press machine feature:1. High efficiency2. Apply for many kinds ... products:Egg-shaped ball, oval-shaped ball, circular-shaped ball, square-shaped ball, columnar-shaped ball, banding-shape ball, cake-shaped ball, etcTechnical Data: ...