Measurement equipment and material testing machines. Verification of Rockwell C, B and A scale hardness testing machines
NORM herausgegeben am 1.4.1967
Designation standards: STN 250257
Classification mark: 250257
Catalog number: 55851
Note: UNGÜLTIG
Publication date standards: 1.4.1967
The number of pages: 12
Approximate weight : 36 g (0.08 lbs)
Country: Slovak technical standard
Kategorie: Technische Normen STN