The A55 Trunk Road (Junction 6 (Nant Turnpike Interchange) to Junction 7 (Cefn Du Interchange), Isle of Anglesey) (Temporary Prohibition of Vehicles, Cyclists & Pedestrians) Order 2019 / Gorchymyn Cefnffordd yr A55 (Cyffordd 6 (Cyfnewidfa Tyrpeg Nant) i Gyffordd 7 (Cyfnewidfa Cefn Du), Ynys Môn) (Gwahardd Cerbydau, Beicwyr a Cherddwyr Dros Dro) 2019