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Database: 189760 (25 Oct 2025)
GB/T 27870-2011
Chinese Standard: 'GB/T 27870-2011'
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GB/T 27870-2011
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Days<=3
Photocatalyst for air purification
GB/T 27870-2011
Valid
GB/T 27870-2011
SIMILAR
unprotected-true-PDFs:
GB/T 37360-2019
GB/T 37359-2019
GB/T 37355-2019
GB/T 37354-2019
GB/T 34248-2017