Paper briquette making machine for fuel Diameter from 6mm to 75mm Fuel value:3700-5000 Kilocalorie Density:0.8 ... environmental parameters1, Briquette density:0.8-1.3g/cm32,Fuel value:3700-5000 Kilocalorie3,S02 discharge is 0.38 ... government for the green recycling.Usages:Environmental protection fuel, fireplace fuel, boiler fuel, heating, biomass power plant fuel, etc Paper materials briquette machine