... 3.Simple and reliable operation 4.Environment protection Where is Fine powder grinding mill used?Mining, chemical ,metallurgy industryCarborundum, ... slag, porcelain, glass,etc Hardness is 4-6Non-explosive, non-flammable minerals How does Fine powder grinding mill work? The ... the extruding, thus get the powder Why choose Fine powder grinding mill?Energy-savingHigh-efficiencyWide Application Range Good ...