... ,sawdust,straw,peanut hull,corncob,boll hull,sunflower hull,coconut shell,etc.moisture of raw material: around 3%.product ... labour cost.6. Besides making good-quality charcoal,our whole set of charcoal machines is designed for recycing. While making ... charcoal, you can gather the smoke and turn it ... the air. biomass sawdust extruder machine for making briquettes