... wood, coal, liquefied natural gas, are widely used for life heating furnace stove, hot water boiler, indust Raw ... metrical: crop like saw dust, corn stalk, wheat stalk, cotton stalk, rice straw, ... Burning rate: higher than 95%8. The burning dust can be used as fertilizerApplication area of charcoal: ( ... value):3500-5500 kilocalorie Briquette Machine for Straw Fuel