... MachineCharcoal ball press can press charcoal powder, charcoal dust, coal powder, etc into ball or pillow-shaped charcoal. The ... of materials, such as coal powder, charcoal powder, coking coal, coke breeze, dusting ash, steel slag, coal slag, iron fine powder, ... Charcoal3. Desulfurization Gypsum4. light burning magnesium,5. iron oxide skin,6. manganese alloy,7. sludge, gypsum,8. carbon,9. silicon ...