Rail(Outside of Beijing)
Civil Construction
Municipal Engineering
International Engineering
Wisdom city
Xi'an Metro Line 1,2,3,4 - engineering survey, the third monitoring, survey and consultation
Line 1 is 25.3km long, Line 2 of Phase 2 is 26.4km long, Line 3 is 44.3km long, Line 4 is 35.2km long.
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