DIN EN ISO 6506-2 SUPP 1 : 1999被替代
METALLIC MATERIALS - BRINELL HARDNESS TEST - PART 2: VERIFICATION AND CALIBRATION OF TESTING MACHINES; RECOMMENDATIONS ACCORDING TO THE VERIFICATION AND FOR THE PERFORMANCE OF THE TESTING MACHINE AND THE PLUNGER
出版：German Institute for Standardisation (Deutsches Institut für Normung)
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