| Naics index | Naics index description |
|---|---|
| 423320 | Countertops, stone and concrete, merchant wholesalers |
| 423320 | Crushed stone merchant wholesalers |
| 423320 | Culvert pipe, concrete, merchant wholesalers |
| 423320 | Drywall joint compounds merchant wholesalers |
| 423320 | Fireplace linings merchant wholesalers |
| 423320 | Flue pipe and linings merchant wholesalers |
| 423320 | Gravel, construction, merchant wholesalers |
| 423320 | Lime (except agricultural) merchant wholesalers |
| 423320 | Mason's materials merchant wholesalers |
| 423320 | Paving mixtures merchant wholesalers |