Electrical engineering services; hiring of building apparatus, plant and construction machinery; construction, installation, maintenance and repair services, all for telecommunications apparatus and instruments and their parts; civil and construction engineering, construction supervision; construction, installation, insulation, renovation, restoration, repair and maintenance of civil engineering structures and works, buildings, car parks, shopping complexes, offices, hotels, apartments, houses, swimming pools, skating rinks and of installations for parking bicycles; demolition services; all included in Class 37.;