T/HTES 004-2020
Disposable masks for primary and secondary school students (English Version)

Standard No.
T/HTES 004-2020
Language
Chinese, Available in English version
Release Date
2020
Published By
Group Standards of the People's Republic of China
Latest
T/HTES 004-2020

T/HTES 004-2020 history

  • 2020 T/HTES 004-2020 Disposable masks for primary and secondary school students
Disposable masks for primary and secondary school students



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