Object: Electronic Auction - Hiring A Specialized Company To Provide Continued Maintenance Services For The Drainage System, Through Mechanical Cleaning In Galleries, Branches, Manholes, Tubes And Connections, With The Supply Of Combined Equipment Hydrojet/Sucker/Recycler, And Dehydration Of Waste With Subsequent Transportation To A Landfill, Registration Of Galleries, Branches, Manholes And Manholes, Smoke Test, Dye Test And Inspection With Supply....