Bids Are Invited For Of Price Registration For Eventual Hiring Of A Company Specialized In The Provision Of Services Inherent To The Preventive And Corrective Building Maintenance Of Real Estate, With The Supply Of Parts, Equipment, Materials And Labor, And All Consumable Material, Machines, Equipment And Tools Necessary For The Execution Of Services In The Form Established In The Spreadsheets For Various Services Described In The National System For Research On Civil Construction Costs And Indices, Hereinafter Referred To As Si