... (t)7size(mm)3200*1900*1600Definition:Straw coal "refers to the corn straw, wheat straw, cotton, straw, husk, groundnut shell, corncob, branches ... pressure molding, close to "straw-coal"Product features: small volume, convenient of resistant to burn, storage and transportation, volume is ... only 1/30 of the straw stalk, its density is 0 ...