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Stein


Matte: an intermediate product of pyrometallurgical processing of sulfide ores of non-ferrous metals, including precious ones, representing a mixture of iron sulfides with sulfides of non-ferrous metals

Source: "PRECIOUS METALS. TERMS AND DEFINITIONS. GOST R 52793-2007"

(Approved by the Order of Rosstandart dated December 24, 2007 No. 388-ст)

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