... 3.compact structure 4.dry powder ball briquette machine Dry powder ball briquette machineBriquettes made with ... powder, magnesium powder, ore powder, active charcoal powder, alumina, caustic soda (sodium hydroxide), clay, coke powder, coal, cryolite, chemical fertilizer, plastic, calces, pigment ... etc. without using binder. The main purpose of the machine is to reduce powder pollution, ...