 | Tunnel boring machines Big Alma and Mom Chung hole-through and extraction at the North Beach retrieval shaft. | From: Central Subway Views: 13  1 ratings |
| Time: 03:26 | More in News & Politics |
TBM Retrieval Shaft Time-Lapse
mercredi 24 décembre 2014
TBM Retrieval Shaft Time-Lapse
TBM Retrieval Shaft Time-Lapse
Inscription à :
Publier les commentaires (Atom)
0 commentaires:
Enregistrer un commentaire