Křídlaté matice.
STANDARD published on 1.3.1981
Designation standards: ČSN 021665:1961/a
Classification mark: 021665
Catalog number: 11977
Note: Change
Publication date standards: 1.3.1981
Approximate weight : 6 g (0.01 lbs)
Country: Czech technical standard
Category: Technical standards ČSN