Sansi's latest tunnel lighting technology applied in Shanghai North Cross Passage(The Beiheng Expressway) was officially opened in 2021. The 19.1 kilometers long tunnel becomes the second main artery connecting the east and west sides of Shanghai.
Sansi's latest tunnel lighting technology applied in Shanghai North Cross Passage(The Beiheng Expressway) was officially opened in 2021. The 19.1 kilometers long tunnel becomes the second main artery connecting the east and west sides of Shanghai.
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