Bids Are Invited For Hiring A Legal Entity Specializing In The Provision Of Common Engineering Services On An Ongoing Basis, On Demand, For The Execution Of Reforms Of Little Material Relevance, Adaptation, Adaptation, Repair Or Revitalization Services, Which Consist Of Simple Activities, Typical Of Isolated Interventions, Which Can Be Objectively Defined According To Usual Specifications In The Market And Prices In The Seop And Sinapi Table, Unencumbered, Which Have A Commercial Nature.