... sawdust, crop straw, wood branches, rice hull, bamboo sawdust, peanut shell, sunflower shell, furfural dregs, cotton stalks, corn stalks, sesame straw, corncob and ... %-40% 7. After carbonization, the bars are silver black, in hollow quadrangle or hexagon columnar type, with glossy sectionCharcoal briquette ... 60,70Ø 70,80Ø80,90charcoal briquette machine working flowchart Shell charcoal briquette machine