1)renewable, 2)eco-friendly, 3)high efficiency, 4)easy to maintain. Eco-friendly Briquette Machine Introduction of Eco-friendly Briquetting Machine:Eco-friendly Briquetting Machine is mainly used for pressing powdery material which is hard to compress molding ,such as aluminum powder, activated carbon, alumina, bauxite and caustic soda charcoal, clay, focal flocks, coal,cryolite, chemical ...