GB/T 39969-2021

Test method of ventilation and rain resistance performance for ventilation louvers of building

NORMA vydaná dňa 30.4.2021

Anglicky a čínsky -
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The information about the standard:

Designation standards: GB/T 39969-2021
Publication date standards: 30.4.2021
Country: Chinese technical standard
Kategória: Technické normy GB