Construction of civil engineering structures, namely, [ bridges, roads, railways, ] ports, [ airports, ] dams, and containment dams with concrete units; Services for the construction of [ buildings and ] infrastructures, namely, consultancy services in the field of construction, construction management and supervision of construction works, providing information in the field of building and construction of [ bridges, roads, railways, ] ports, [ airports, ] dams, containment dams [ and bridges...

Non-metallic building materials, namely, blocks of cement