TESTING OF GLASS. KNOOP HARDNESS TEST
NORM herausgegeben am 15.6.1984
Designation standards: UNE 43721:1984
Publication date standards: 15.6.1984
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: Spanish technical standard
Kategorie: Technische Normen UNE