Works To Restore The Functionality Of The Sewerage Networks In The Territory Of The 1A, 2A, And 3A Districts, Works To Restore The Functionality Of The Sewerage Networks In The Territory Of The 4A, 5A, 6A And 7A Districts Of The Municipality Of Messina - Service 24/24 Cleaning Truck Supporting The Sewerage Network Works And Extraordinary Cleaning And Unclogging Service Of Sections Of Conduits And Pools