... 4.Stable performance charcoal briquette machine:1. Charcoal briquette machine raw material: sawdust, crop straw, wood branches, rice hull, bamboo sawdust, peanut shell, sunflower shell, furfural dregs, cotton ... diameter (mm)Ø50,60Ø 60,70Ø 70,80Ø80,90charcoal briquette machine working flowchart Shell charcoal briquette machine