[Class : 37] System Installations, Installations And Maintenance Of Communication And Surveillance Systems, Installations, Testing And Commissioning Of Telecommunication Networks And Systems, Installation, Maintenance Or Repair Of Various Systems Such As Digital/Ip Pabx Systems, Industrial Cctv Systems, With Nvms, Hi Tech Access Control And Intrusion Detection Systems, It Infrastructure, Video Conferencing, Telepresence And Enteprise Iptv, Paga Systems, Radio Systems, Etc., Harbour Construction, Heating Equipment Installation And Repair, Air Conditioning Apparatus Installation And Repairs, Anti Rust Treatment For Vehicles, Asphalting, Boiler Cleaning And Repair, Brick Laying, Building Construction Supervision, Building Insulating, Building Sealing, Burner Maintenance And Repair, Chimney Sweeping, Damp Proofing (Building), Electric Appliances Installation And Repairs, Rebuilding Of Machines Or Engines, All Types Of Construction; Repair; Installation Services.