... Feeding Device. Ball Press Machine can be used to suppress coal , iron , coke , aluminum powder, iron , iron oxide skin, ... with good economic and social benefits.charcoal briquette machine Features:coal briquette machine 1. High quality and efficiency 2. Long ... -consumption,energy savingcharcoal briquette machine Working PrincipleThis series of coal briquette machinewill pass the power on to the two ...