System of building design documents. Gas supply. Internal equipment. Working drawings
NORM herausgegeben am 1.1.1984
Designation standards: GOST 21.609-83
Note: UNGÜLTIG
Publication date standards: 1.1.1984
The number of pages: 14
Approximate weight : 42 g (0.09 lbs)
Country: Russian technical standard
Kategorie: Technische Normen GOST