DB11/T 1749.3-2020 Disinfection Technical Specifications for Epidemic Prevention and Control of Respiratory Infectious Diseases Part 3: Primary and Secondary Schools (English Version)
Beijing Provincial Standard of the People's Republic of China
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DB11/T 1749.3-2020
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2020DB11/T 1749.3-2020 Disinfection Technical Specifications for Epidemic Prevention and Control of Respiratory Infectious Diseases Part 3: Primary and Secondary Schools