The Subject Of The Contract Is To Provide Supervisory And Daily Management Of The Operation Of The Electrical And Mechanical Equipment And Installations Of The Building Of Mod Sa. On Louisis Riankour Street 78A, Pc 11524 Athens And Their Regular, Preventive And Repair Maintenance. The Concept Of The Daily Operation Of The Building'S Electrical And Mechanical Equipment And Installations Include Small -Scale Problems Of Electromechanical Equipment, Hydraulic Installations, Mechanisms And Building Elements Of The Building That Do Not Exceed The Capabilities Of A Specialized Technician & Amp;#8211; Conservator.