... International Approvals//ball press machine~IN STORE ball press machine is mainly used in coal powder,coal slime,middings ... metallurgy, mining, coal, refractories, abrasive, fertilizer, ceramics, etc. Main parameters: Usages: Coal press ball forming machine is a ... desulfurized gypsum , coke powder ,scrap iron , albuminate powder and other metal materials. Why we use this machine ? Because , we can ...