... a variety of powder material ( such as magnesia, bauxite, dolomite, iron and so on ) through forcing booster, preload screw ... , metallic powder (Fe / Si powder), iron scale, iron sludge, precipitator dust, iron concentrate, the final production can be press into ... Machine can be used to suppress the pulverized coal, iron, coal, aluminum, iron, iron oxide, carbon powder, charcoal powder, slag, gypsum, ...