GB 7429-1987

Location and width of recording head gaps for two sound records on 16mm perforated magnetic film

NORM herausgegeben am 1.1.1987

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The information about the standard:

Designation standards: GB 7429-1987
Note: UNGÜLTIG
Publication date standards: 1.1.1987
Country: Chinese technical standard
Kategorie: Technische Normen GB