
Spectacle frames for corrective eye glasses. General technical requirements and test methods
NORMA vydaná dňa 1.7.1991
Designation standards: GOST 18491-90
Publication date standards: 1.7.1991
The number of pages: 15
Approximate weight : 45 g (0.10 lbs)
Country: Russian technical standard
Kategória: Technické normy GOST