Ophthalmic optics. Spectacle frames for corrective eyeglasses. General technical requirements and test methods
NORM herausgegeben am 1.1.2015
Designation standards: GOST 31589-2012
Publication date standards: 1.1.2015
The number of pages: 17
Approximate weight : 51 g (0.11 lbs)
Country: Russian technical standard
Kategorie: Technische Normen GOST