Open invitation to tender, deadline 26.07.2017, for walls to be cleaned with high pressure water, surface protection system and lightproof coating with anti-graffiti additive for the 1,138 m Galgenbuck tunnel and its portals on the N04/06 (Lot A28). The duration of the contract is from 30/04/2018 to 27/07/2018. For further information go to http://www.simap.ch/shabforms/servlet/Search?NOTICE_NR=972829. Contact Ofrou, Winterthur, tel +41 58 4804711, fax +41 58 4804790, email beschaffung.winterthur@astra.admin.ch. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=232848-2017. Ref. n. 080086. 25/17.
