Zhengzhou Metro Line 1 and 2 - Third party monitoring
Henan Province, the first subway line, 1,2 lines were 41.4 km and 18.27 km.
Zhengzhou Metro Line 1 and 2 - Third party monitoring
Henan Province, the first subway line, 1,2 lines were 41.4 km and 18.27 km.
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