... energy saving 1Simple introduction of dry powder ball press machine;Ball Pressure machine, also known as goose machines , mainly used to ... to suppress coal , iron , coke , aluminum powder, iron , iron oxide skin, toner , toner , slag , gypsum, tailings , sludge , kaolin , activated carbon ... Loose on the local materials, such as coke, iron skin, dust powder effects of sludge and other materials is very ...