1. Modular construction: Use steel to build reusable modules to improve construction efficiency.

2. Underground space development: used to build underground parking lots, tunnels, etc.

3. Maritime City: Build offshore platforms and building structures.

4. Green roofs and walls: Steel can support the growth of vegetation.

5. New transportation facilities: such as maglev tracks, etc.

6. Movable buildings: enable flexible relocation and reorganization of buildings.

7. Urban sculptures and art installations: Show the artistic atmosphere of the city.

8. Smart grid infrastructure: supports power transmission and distribution equipment.