... and forest wastes. With this machine ,you can make straw ,wood sawdust , bagasse , peanut shell and the other materials into briquettes ... , the briquettes are biomass firewood , it can burn to replace coal. The biomass briquettes can be used in ... or any other impuritiesc. it is not carbonized ,can fully burn, without any smoke or pollution d. calorific value with 3500 ...