air pollution and planning; anchorage; anchorage engineering, services, transfer of knowledge; blasting technology, transfer of knowledge; construction assistance; destruction in explosive; drilling; ecology, technical advisory and planning; environment, technical advisory and planning; environmental engineering, projects; explosive technology, services; forestry engineer; gunniting; hole drilling; investigation, geological; investigations, hydraulic; mapping; measuring technology, services; measuring technology, transfer of knowledge; meteorological investigations; meteorology; observations, obtaining information on substratum structure; sanitary engineering, projects; spray mortar; surface measurements, obtaining information on substratum structure; technical advice; technical drawings; technical planning; works of cleaning up, technical advisory and planning