... .simple operation 4.rugged construction and lon High-tech with new design high pressure ball machine from stock Ball Press Machine ... Machine can be used to suppress the pulverized coal, iron, coal, aluminum, iron, iron oxide, carbon powder, charcoal powder, slag, gypsum, ... sectionThis series machine using pulverized coal, coke powder, slag, iron oxide skin and dust ash, coal slurry, powder metallurgy ...