... . Calorific Value: 29~33MJ/Kg Ash Content: 1~10% Machine-made charcoal: made of pure wood pieces, no additional ingredients.Calorific Value: 29 ... : 1.3Mpa, radial: 1.0MpaResistance: 3~5ΩWe produces the machine-made charcoal, original charcoal, charcoal powder, specified-type charcoal products, and ... clean package, our products enjoy high reputation from our customers. Machine-made charcoal