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Database: 189759 (19 Oct 2025)
JB/T 4251-1999
Chinese Standard: 'JB/T 4251-1999'
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JB/T 4251-1999
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Days<=3
Friction welding. General requirements
JB/T 4251-1999
Obsolete
JB/T 4251-1999
SIMILAR
unprotected-true-PDFs:
GB/T 44051-2024
GB/T 29712-2023
JB/T 5000.3-2007
JB/T 10375-2002