
Metallic materials - Brinell hardness test Part 3: Calibration of reference blocks (ISO 6506-3:2014)
出版:German Institute for Standardisation (Deutsches Institut f眉r Normung)

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Metallic materials - Brinell hardness test Part 3: Calibration of reference blocks (ISO 6506-3:2014)
出版:German Institute for Standardisation (Deutsches Institut f眉r Normung)
专家解读视频