GB 40070-2021

Hygienic requirements of study products for myopia prevention and control in children and adolescents

NORMA vydaná dňa 20.2.2021

Anglicky a čínsky -
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The information about the standard:

Designation standards: GB 40070-2021
Publication date standards: 20.2.2021
Country: Chinese technical standard
Kategória: Technické normy GB