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Database: 189759 (26 Oct 2025)
CECS321-2012
Chinese Standard: 'CECS321-2012'
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Related Standard
CECS 321-2012
English
809
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Days<=6
Design specification for shutter filter
CECS 321-2012
Valid
CECS 321-2012
SIMILAR
unprotected-true-PDFs:
CEL 007-2021
CEL 038-2020
GB/T 18487.2-2017
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