Purchase of services for the acquisition, maintenance and repair of security alarm systems, fire alarm systems, computer and telephone networks, video surveillance and recording systems, access control systems, traffic control systems, automatic roadblocks, traffic lights and maintenance and repair of forced vehicle braking facilities.

Purchase of services for the acquisition, maintenance and repair of security alarm systems, fire alarm systems, computer and telephone networks, video surveillance and recording systems, access control systems, traffic control systems, automatic roadblocks, traffic lights and maintenance and repair of forced vehicle braking facilities.