from KraussMaffei' press information https://press.kraussmaffei.com/en/news/from-the-sea-into-the-tunnel-kraussmaffei-customer-oldroyd-uses-100-sea-plastics-for-its-products
Norway new tunnel contracts 11 November 2022 press release https://kommunikasjon.ntb.no/pressemelding/tunnelkontrakt-ute-i-markedet?publisherId=17847490&releaseId=17946557&lang=no