Tanks, silos, containers, and receptacles, all of common metals; earth stabilization devices in the nature of panels or blocks of common metals for earth stabilization; foils, gratings, sheets, panels, form sections, slabs, blocks, bars, rods, strips, frames and frameworks, all of common metals and for earth stabilization; metal tubes and pipes; soldering metals; screws, bolts, nuts, hooks and nails, all of common metals

Prefabricated nonmetallic buildings; nonmetallic structures consisting of concrete panels or blocks and reinforcing bands or strips for earth stabilization by mechanical means; nonmetallic structures consisting of concrete panels or blocks and reinforcing bands or strips for retaining earth; nonmetallic retaining walls; nonmetallic materials for building civil engineering structures, namely, concrete panels or blocks and reinforcing bands or strips; nonmetallic frameworks for building civil engineering structures; nonmetallic panels for lining mechanically stabilized land structures; nonmetallic panels for lining earth stabilization structures by mechanical means; concrete panels; concrete blocks; concrete enclosures for retaining earth; concrete reservoirs for retaining earth; and modular silos, all completely nonmetallic, used for building civil engineering structures

Repair, maintenance and demolition services of buildings and civil engineering structures; construction, maintenance and repair services of roads, tracks, runs, bridges, bridge abutments, stabilized land structures, earth stabilization structures and devices, embankments, retaining walls, dikes, tunnels, gutters, enclosures, retention basins, reservoirs and silos; earthmoving; land clearing; excavation; underwater dredging; construction supervision

Engineering services in the field of building construction; surveying and technical consulting relating to goods and services in the field of construction