GB/T 7774-1987

Methods of measurement of the performance characteristics of turbo-molecular pumps

NORMA vydaná dňa 23.5.1987

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The information about the standard:

Designation standards: GB/T 7774-1987
Note: NEPLATNÁ
Publication date standards: 23.5.1987
Country: Chinese technical standard
Kategória: Technické normy GB