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From drills to digital - the evolution of tunnel mastery

en.ptnet.cn | Updated:2026-03-25 | Lin Dan
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Did you know?

Pingtan earned its title as the "hometown of tunnels" through relentless innovation. 

Once reliant on manual drills, its workers now command smart, large-scale machinery, crafting underground marvels that redefine global engineering standards.


Editor in Charge:Lin Dan
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