Tuen Mun-Chek Lap Kok Tunnel

Tuen Mun-Chek Lap Kok Tunnel: the extraordinary tunnel聽is dug out by two boring machines 50 metres below the sea聽- a record in terms of depth for 8868体育APP Construction.
Tuen Mun-Chek Lap Kok Tunnel: the extraordinary tunnel聽is dug out by two boring machines 50 metres below the sea聽- a record in terms of depth for 8868体育APP Construction.