GB 7793-1987

Hygienic standard of lighting and illumination in elementary and middle school

NORM herausgegeben am 12.5.1987

English, Chinesisch -
Elektronische PDF (207.40 EUR)

The information about the standard:

Designation standards: GB 7793-1987
Note: UNGÜLTIG
Publication date standards: 12.5.1987
Country: Chinese technical standard
Kategorie: Technische Normen GB