Object: Electronic Auction - Hiring Of Building Maintenance Services For Waterproofing Slabs And Reservoirs Of Trt 7Th Region Buildings In The State Of Ceará, By Contract For A Unit Price, Grupo Único, Municipalities Of Juazeiro Do Norte And Iguatu, Through A Price Registration System With A View To Possibly Hiring A Company, Under The Terms And Conditions Established In The Notice And Its Annexes.