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Database: 189759 (19 Oct 2025)
JB/T 6420-1992
Chinese Standard: 'JB/T 6420-1992'
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JB/T 6420-1992
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Days<=4
(Train unit air conditioning units)
JB/T 6420-1992
Obsolete
JB/T 6420-1992
SIMILAR
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