Rockwell kalibrointipalat HRA 60-70
Rockwell kalibrointipalat HRA 70-85
Rockwell kalibrointipalat HRB 60-70
Rockwell kalibrointipalat HRB 85-95
Rockwell kalibrointipalat HRC 20-30
Rockwell kalibrointipalat HRC 35-55
Rockwell kalibrointipalat HRC 60-70