GB/T 4770.1-1984

The test methods for 3-channel open wire carrier telephone equipment

NORMA vydaná dňa 1.1.1984

Anglicky a čínsky -
Elektronické PDF (976.30 EUR)

The information about the standard:

Designation standards: GB/T 4770.1-1984
Note: NEPLATNÁ
Publication date standards: 1.1.1984
Country: Chinese technical standard
Kategória: Technické normy GB