... can be used to make briquettes from coal powder, charcoal powder and coke powder with binder. Suitable materials for briquetting:1. ... Color and black metallic mine powder2. Coal powder, Coke powder, Lignite, etc,3. Charcoal powder, fireproof materials, Desulfurization gypsum, Dolomite, etc ... in high quality and strong (not easy broken) that won't be broken when dropped from 150-150cm height. Meanwhile, ...