Haivan Pass Tunnel
CONSTRUCTION PROJECT

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As of October 2002 - Home | Next

Ventilation Adit - stream between Culvert No. 1 during heavy rain at access road

Hầm thông gió - suối tại cống số 1 đướng công vụ trong thời điểm mưa lớn

Tháng 10/2002 - Trở về


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