Haivan Pass Tunnel
CONSTRUCTION
PROJECT
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Progress Report > Package IA - North Tunnel Section
Complete Curve Sect. Base and 1st Lift Center Wall Concrete at Vent. Adit Sta. 0-447.72 blk.no.71 (Show's the ending block No.71 with two block's No. 72/73 Emergency Passage Way)
Hoàn
tất điểm cong trong hầm thông gió
Tháng 12/2003 - Trở về
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