Haivan Pass Tunnel
CONSTRUCTION
PROJECT
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Progress Report > Package IA - North Tunnel Section
Portal Cut & Cover Section Concrete Works for Lining & Wall Station 1+752.51 ~ 1+1749.51 at Ventilation Adit Portal
Đổ bê tông khu vực hầm hở tại hầm thông gió
Tháng 05/2003 - Trở về
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