... fuel, easily precipitated.It can be save more fuels ,reduce cost.the finish products has small size , large proportion.it ... same weight of straw .f 0.9-1.4g/cm3, density can be achieved between 3500-5500 kcal, is a high- ... only use oil-fired boiler, which is higher than the cost of fuel "coal straw" the three times, bring out the ... -CM-2190-21018.5KW5KW1200*1200*1200560KG ORB charcoal making machine