Electric rotary machines. Ranges of rated output, voltages and frequencies
NORMA vydána dne 1.1.1986
Designation standards: GOST 12139-84
Publication date standards: 1.1.1986
The number of pages: 7
Approximate weight : 21 g (0.05 lbs)
Country: Russian technical standard
Kategorie: Technické normy GOST