... briquette machine 1. Coal power press ball 2. Save work force and power 3. Easy operate 4. Different capacity Coal powder briquette ... The press roller of the machine uses 65mm rigid material with good abrasion resistance, lengthening effectively service ... and black metallic mine powder2. Coal powder, Coke powder, Lignite, etc,3. Charcoal powder, fireproof materials, Desulfurization gypsum, Dolomite, ...