Rail(Outside of Beijing)
Civil Construction
Municipal Engineering
International Engineering
Wisdom city
Nanjing Metro Line 3 and 4, Ningtian Intercity Phase I - Third Party Monitoring, Geotechnical Investigation, Engineering Survey
Line 4 and Line 4 and Ningtian Intercity Line 1 are 44.83km, 43.1km and 44.5km respectively.
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