System of design documents for construction. Elements of sanitary engineering systems-symbols
NORMA vydána dne 1.7.1994
Designation standards: GOST 21.205-93
Note: NEPLATNÁ
Publication date standards: 1.7.1994
The number of pages: 12
Approximate weight : 36 g (0.08 lbs)
Country: Russian technical standard
Kategorie: Technické normy GOST