... :19.79MJ high practical applicability This is our 4th generation sawdust briquette machine,based on the technological improvement of previous 3 ... reform of Korean and Japanese technology. raw material: wood,branches,sawdust,straw,peanut hull,corncob,boll hull,sunflower hull,coconut shell ... your own use,with no emission into the air. biomass sawdust extruder machine for making briquettes