... power 3. Easy operate 4. Different capacity Coal powder briquette press machine1.Mold materials:mineral power, metal power, coal ... abrasion resistance, lengthening effectively service life of the press roller.Note: Date above is only for reference ... Color and black metallic mine powder2. Coal powder, Coke powder, Lignite, etc,3. Charcoal powder, fireproof materials, Desulfurization gypsum, Dolomite, ...