| 995451 | Pile driving and foundation services |
| 995452 | Building framing & Roof Framing services |
| 995453 | Roofing and waterproofing services |
| 995454 | Concrete services |
| 995455 | Structural steel erection services |
| 995456 | Masonry services |
| 995457 | Scaffolding services |
| 995458 | Other special trade construction services n.e.c. |
| 995459 | Services involving Repair, alterations, additions, replacements, maintenance of the constructions covered above. |
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