... powder. It 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, ... not easy broken) that won't be broken when dropped from 150-150cm height. Meanwhile, it is easy for combustion, ...