The newly revised national standard GB/T14046 - 2009 'railway signal lamp'
2020-12-03
ALLTOP
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The newly revised national standard GB/T14046 - 2009 'railway signal lamp' revision date - 2009 05 - The 2009-04, the implementation date 11 - 01, will replace the GB/T14046 - 1993.
( Sandwich)
China lighting network
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