Gold alloy coverings on watch cases; requirements, testing and marking.
NORMA vydaná dňa 1.2.1981
Designation standards: E DIN 8237:1981-02
Note: NEPLATNÁ
Publication date standards: 1.2.1981
The number of pages: 7
Approximate weight : 21 g (0.05 lbs)
Country: German technical standard
Kategória: Technické normy DIN
Goldauflagen für Kleinuhrgehäuse; Anforderungen, Prüfung und Kennzeichnung.