Civil engineering Civil Engineering Brochure Civil Engineering Video 4 companies : Nouvetra, SATIF, SATIF OA and Sereha SERFIM Civil Engineering, in line with its ongoing concern for customer satisfaction and respect for users, handles works on structures in operation throughout the nation and abroad. At the cutting-edge of innovation in the areas of hydro-demolition and sealing with hot polyurethane, Nouvetra specializes in civil engineering repair techniques: tunnels, bridges, retaining walls, viaducts, accessible tunnels and main drains. Satif and Satif OA provide their know-how embracing submerged or hyperbaric works, structure inspections and building works. Sereha completes this expertise for trenchless rehabilitation works in wet networks.