[Class : 6] Metal Building Materials, Metal Reinforcing Materials For Concrete, Metal Reinforcing Materials For Building, Metal Beams And Joists, Metal Transportable Buildings, Metal Prefabricated Bridges, Metal Pipes, Metal Constructions For Public And Private Works, Including Metal Support Elements; Monuments Of Metal, Prefabricated Bridges Of Metal And Other Materials.[Class : 19] Non Metallic Construction Materials; Transportable Buildings Not Of Metal; Concrete Construction Elements For Public And Private Works Comprising Conduits Consisting Of Attached Prefabricated Elements; Concrete Construction Elements Consisting Of Underground Tunnels And Passageways; Non Metallic Prefabricated Modules For Making Said Structures, Non Metallic Prefabricated Elements For Supporting Said Structures.[Class : 37] Public And Private Building Works; Installing And Building Metal Or Non Metallic Structures; Clearing And Backfilling Work For The Aforementioned Structures, Tunnel Coatings, Servicing And Repair Work Relating Thereto.[Class : 42] Engineering Work; Construction Drafting; Industrial Design; Surveying (Engineering Work); Testing Of Materials; Architecture.