... coal power briquette machine 1. Coal power press ball 2. Save work force and power 3. Easy operate 4. Different capacity Coal powder briquette ... press machine1.Mold materials:mineral power, metal power, coal power, coke ... and black metallic mine powder2. Coal powder, Coke powder, Lignite, etc,3. Charcoal powder, fireproof materials, Desulfurization gypsum, ...