... in China. Our main products are crusher, grinding miller, dryer, briquette machine and so on. They are excellent quality and enjoy ... is screw extruding type and widely used to press coal / charcoal / carbon black / etc. Finished briquettes can be used for many ... .3) Finished BriquetteBriquette shape: Round, suqare,etc. ( solid or hollow ) Briquette Diameter :20-80mm 3.Raw Material 1)Raw material size ...