Index system of production quality. Butterfly and spherical valves for hydraulic turbines. Index nomenclature
NORM herausgegeben am 1.1.1987
Designation standards: GOST 4.412-86
Publication date standards: 1.1.1987
The number of pages: 8
Approximate weight : 24 g (0.05 lbs)
Country: Russian technical standard
Kategorie: Technische Normen GOST