... grinding machine is suitable for grinding barite, limestone, ceramic, slag, and etc, the moh's hardness ... fluorite, rare-earth, marble, ceramic, bauxite, manganese ore, iron ore, copper ore, phosphorite, iron oxide red, zircon, cinder, cement ... red stone, emeraldite, basalt, gypsum, graphite, carborundum, heat insulating material, ect Technical Parameters: Model300400700800Super fineness 800Feed size ...