... suppress coal , iron , coke , aluminum powder, iron , iron oxide skin, toner , toner , slag , gypsum, tailings , sludge , kaolin , activated carbon, ... good economic and social benefits.charcoal briquette machine Features:coal briquette machine 1. High quality and efficiency 2. ... ,energy savingcharcoal briquette machine Working PrincipleThis series of coal briquette machinewill pass the power on to the ...