Rental of cleaning machines; burglar alarm installation and repair; fire alarm installation and repair; installation and repair of warehouses; air-conditioning apparatus installation and repair; installation and repair of apparatus for refrigerating, installation and repair of electrical apparatus; elevator installation and repair; installation and repair of heating systems; installation and repair of telephones; installation, maintenance and repair of hardware; installation, maintenance and repair of machines; installation, maintenance and repair of office equipment and machines; safe maintenance and repair; strong-room maintenance and repair; reconditioning of used or partly destroyed machines; repair of electric lines; umbrella repair; watch repair; repair of parasols; repair or maintenance of movie projectors; cell phone battery charging services; mobile phone battery charging services; refilling of ink cartridges; refilling of toner cartridges; transmission line construction services; installation of ducting for structured cabling; installation of solar panels; charging services for cell phone batteries; repair of spectacles; repair of electrical installations; repair of furniture; installation purge services.

Sound suppression, acoustic foam