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Database: 189759 (19 Oct 2025)
GB/T 3931-1983
Chinese Standard: 'GB/T 3931-1983'
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GB/T 3931-1983
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Days<=3
Mechanical coupling--Terminology
GB/T 3931-1983
Obsolete
GB/T 3931-1983
SIMILAR
unprotected-true-PDFs:
GB/T 5015-2017
GB/T 5014-2017
GB/T 4323-2017
GB/T 30819-2014
GB/T 14118-1993