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Laos, China mark completion of one of railway’s longest tunnels
Luang Namtha province: Lao and Chinese authorities yesterday marked completion of boring and construction of the Boten tunnel – the first completed among the 10 longest tunnels for the Laos-China railway project.The 6,453.5 metre-long tunnel is among 10 for the project whose length exceeds 5,000 metres ...
Souksakhone Vaenkeo