The installation, conversion, expansion and maintenance of technical systems, heating and air conditioning systems, in particular refrigeration and controlled atmosphere systems, sanitary and hygienic systems, systems for the transport and utilization of gas, water supply systems, irrigation systems, water treatment and purification systems, fire protection systems, electrical systems, systems for protection against atmospheric discharges, as well as the installation and sale of automation components and systems. Provision of personnel services; complete purpose in accordance with the articles of association.