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Page 23 - New Austrian Tunneling Method News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Boring complete for Slovakia s Bikos Tunnel

The 1km tunnel is part of the 4.5km dual carriageway R4 Prešov bypass.

Bikos tunnelNew austrian tunneling methodபுதியது ஆஸ்திரேலிய சுரங்கப்பாதை முறை

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