©
nonac.eos@gmail.com: Excavation Front - Alptransit- Switzerland
©
nonac.eos@gmail.com: Rocks - Alptransit - Switzerland
©
nonac.eos@gmail.com: Excavation Front (Side VIew) - Alptransit- Switzerland
©
nonac.eos@gmail.com: Fresh Air Duct - Alptransit - Swizterland
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nonac.eos@gmail.com: Double Air Duct - Alptransit - Switzerland
©
nonac.eos@gmail.com: Alptransit - Porte Aperte - Sigirino - Switzerland