... material.Introduction:Biomass fuel (straw coal) forming machine is designed for straw(sawdust) which have large ... and low density material to press tightly. This machine adopts Piston punching theory. 1. Crush raw ... -pollution.etc.Different name: Biofuel forming machine, Straw charcoal machine, straw briquetting machine, Biomass briquette machine, Straw fuel making machine, Charcoal briquette machine