Specifications 1. high efficiency, competitive price 2. low power and non-environmental pollution 3. stong function ... of materials, such as coal powder, charcoal powder, coking coal, coke breeze, dusting ash, steel slag, coal slag, iron fine powder ... burning magnesium,5. iron oxide skin,6. manganese alloy,7. sludge, gypsum,8. carbon,9. silicon carbide,10. copper powder,11 ...