Jewels for fine mechanics; watch jewels, flat.
NORMA vydána dne 1.3.1980
Designation standards: DIN 8257-1:1980-03
Note: NEPLATNÁ
Publication date standards: 1.3.1980
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: German technical standard
Kategorie: Technické normy DIN
Lagersteine der Feinwerktechnik; Lochsteine für Uhren, flach.