
BS EN ISO 4499-4 - HARDMETALS - METALLOGRAPHIC DETERMINATION OF MICROSTRUCTURE - PART 4: CHARACTERISATION OF POROSITY, CARBON DEFECTS AND ETA-PHASE CONTENT
出版:British Standards Institution

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BS EN ISO 4499-4 - HARDMETALS - METALLOGRAPHIC DETERMINATION OF MICROSTRUCTURE - PART 4: CHARACTERISATION OF POROSITY, CARBON DEFECTS AND ETA-PHASE CONTENT
出版:British Standards Institution
专家解读视频