Jewels for fine mechanics; watch jewels, flat.
STANDARD published on 1.3.1980
Designation standards: DIN 8257-1:1980-03
Note: WITHDRAWN
Publication date standards: 1.3.1980
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: German technical standard
Category: Technical standards DIN
Lagersteine der Feinwerktechnik; Lochsteine für Uhren, flach.