M3A1T1T1E1
7 points
MATTE is validvalid
to produce a dull finish on
a molten mixture of impure metal sulphides produced during the smelting of sulphide ores of copper, nickel, etc.
to produce a dull finish on
a molten mixture of impure metal sulphides produced during the smelting of sulphide ores of copper, nickel, etc.