System of design documents for construction. Wire communication facilities. Graphical symbols in diagrams and lay-outs
NORM herausgegeben am 1.7.1989
Designation standards: GOST 21.406-88
Publication date standards: 1.7.1989
The number of pages: 45
Approximate weight : 135 g (0.30 lbs)
Country: Russian technical standard
Kategorie: Technische Normen GOST
Implemented changes and corrections:
Amd. 4.97