Preventive And Corrective Maintenance Service, Revisions Of Scenic Elements: Stage Platforms, Mechanized Gates, Motors, Lifting Shafts, Stage Cable Reels (Lot 1), Stands Of The Teatro Circo Price, Nave 10 And Nave 11 (Lot 2), Machinery Of The Fleet Of Lifting Machines (Lot 3), Means Of Collective Protection And Safety Elements (Lot 4)