Assembly and maintenance of industrial facilities for electricity, plumbing and air conditioning. Assembly and refurbishment of service stations. Installation and maintenance of fire protection systems: automatic detection, alarm manuals, alarm communication, water supply, outdoor hydrants, equipped fire hydrants, dry column, automatic sprinkler extinction, water spray extinction, extinction by foam, extinguishing by powder, extinguishing by gaseous extinguishing agents. Installation and maintenance of charging points. Installation and maintenance of solar panels