Open invitation to tender, deadline 31/07/2023, for the replacing of the 37 shelter doors in the Mont Blanc tunnel. For tender documents please click here, where tenders must be sent. Duration of the contract will be 42 months. Contact GEIE du Tunnel du Mont-Blanc, Chamonix, email Uacquisti@tunnelmb.com. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=361739-2023 . Ref.n. 0704_Travaux. 25/23.