... coal powder:1000-10,000kg/h 3.Shape: ball, oval,pillow... Double-roll type press machine:This machine ... mineral, metal.etc.3. Make round type or pillow type or oblong type charcoal ball.4. The ... dust, coal powder, etc into ball or pillow-shaped charcoal.2. This series of Coal ball ... ball, square-shaped ball, columnar-shaped ball, banding-shape ball, cake-shaped ball, etcTechnical Data:Charcoal powder ...