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Database: 189760 (25 Oct 2025)
QB/T 5491-2020
Chinese Standard: 'QB/T 5491-2020'
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QB/T 5491-2020
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209
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Days<=3
Polymethacrylimide foam board
QB/T 5491-2020
Valid
QB/T 5491-2020
SIMILAR
unprotected-true-PDFs:
GB/T 10802-2023
GB/T 41880-2022
QB/T 2080-2018
QB/T 4878-2015
QB/T 2957-2008