... ball billet, is widely used in metallurgical, chemical, coal and refractory industry. It after several improvements, especially ... : Briquette Machine can be used to suppress the pulverized coal, iron, coal, aluminum, iron, iron oxide, carbon powder, charcoal ... sectionThis series machine using pulverized coal, coke powder, slag, iron oxide skin and dust ash, coal slurry, powder metallurgy materials. ...