| psc | description |
| •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• | |
| 5410 | Prefabricated & portable buildings |
| 5411 | Rigid wall shelters |
| 5419 | Collective modular support system |
| 5420 | Bridges, fixed & floating |
| 5430 | Storage tanks |
| 5440 | Scaffolding equipment & concrete forms |
| 5445 | Prefabricated tower structures |
| 5450 | Miscellaneous prefabricated structures |
