... concentrate, the final production can be press into ball, oval pillow and egg shapes, etc. 2. Ball press machine mainly ... coal, iron, coal, aluminum, iron, iron oxide, carbon powder, charcoal powder, slag, gypsum, tailings, sewage sludge, kaolin, activated carbon, ... dust ash, slime, powder metallurgy, sea Kam iron carbon products, such as material effect obviously extraordinary role.This series of ...