Hardmetals - Rockwell test (scales A and 45N) - Calibration of reference blocks out of hardmetals to be used for the verification and calibration of hardness testing machines
German title
Hartmetalle - Rockwell-Härteprüfung (Skalen A und 45N) - Kalibrierung von Härtevergleichsplatten aus Hartmetall für die Prüfung und Kalibrierung von Härteprüfmaschinen
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