
HARDMETALS - METALLOGRAPHIC DETERMINATION OF MICROSTRUCTURE - PART 4: CHARACTERISATION OF POROSITY, CARBON DEFECTS AND ETA-PHASE CONTENT (ISO 4499-4:2016)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

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HARDMETALS - METALLOGRAPHIC DETERMINATION OF MICROSTRUCTURE - PART 4: CHARACTERISATION OF POROSITY, CARBON DEFECTS AND ETA-PHASE CONTENT (ISO 4499-4:2016)
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频