coal power briquette machine 1. Coal power press ball 2. Save work force and power 3. Easy operate ... density, high strength and high hardness3. Note: The press roller of the machine uses 65mm rigid material with good abrasion resistance, lengthening ... powder2. Coal powder, Coke powder, Lignite, etc,3. Charcoal powder, fireproof materials, Desulfurization gypsum, Dolomite, etc. Final product