... main engine ratate-speed Mineral powder briquetting machineis mainly used to press the mineral powder which are difficult to ... anhydrous materials of non-ferrous and ferrous mineral powder briquette /ball making system before the smelting furnace, such as coal ... Lead Zinc Ore, steel slag, aluminum ash, Si-Mn mineral powder, bauxite refractory, nonferrous metal power, refractory matter, ceramic ...