37 Repair, reinforcement and protection in the nature of building construction, namely, waterproofing, stabilizing, providing support, improving structural capacity by building shells around existing element, application of protective coatings of structures of metal, steel, wood, masonry and/or concrete; Repair, reinforcement and protection in the nature of building construction, namely, waterproofing, stabilizing with formwork, improving structural capacity by building shells around existing element, application of protective coatings of steel structures and metal structures with the aim of protecting them; Repair, reinforcement and protection in the nature of building construction, namely, waterproofing, stabilizing with formwork, improving structural capacity by building shells around existing element, application of protective coatings of structures of metal, steel, wood, masonry and/or concrete with the aim of protecting them against fire; Repair, reinforcement and protection in the nature of building construction, namely, waterproofing, stabilizing with formwork, improving structural capacity by building shells around existing element, application of protective coatings of metal structures, metal and non-metallic columns, structures of steel, wood, masonry and/or concrete; construction, repair, reinforcement, fortification, maintenance and demolition of buildings and civil engineering structures; services, namely, foundation and construction contractor services for stabilizing, strengthening, fortifying the ground and foundations; construction, reinforcement, fortification, maintenance and repair of real estate, tracks, roads, paths, bridges, bridge abutments, embankments, retaining walls, dikes, tunnels, gutters, enclosures, reservoirs, tanks, cisterns and silos; construction, namely, construction of columns, cross beams, shells, formwork and building stabilizing and reinforcement structures; building construction supervision; information relating to construction, repair, reinforcement, fortification, maintenance and demolition; maintenance, renovation, reinforcement and restoration of historical monuments, buildings, structures and monuments; rental of construction equipment, bulldozers, excavators, cranes; installation, maintenance and repair of building site machines; advice in the fields of construction, reinforcement, maintenance and repair of real estate, buildings, civil engineering structures; construction consultancy