| Naics index | Naics index description |
|---|---|
| 333998 | Gas separating machinery manufacturing |
| 333998 | Gate and bridge lifting machinery manufacturing |
| 333998 | Ice crushers, industrial and commercial-type, manufacturing |
| 333998 | Industrial robot cells manufacturing |
| 333998 | Industrial robots manufacturing |
| 333998 | Industrial scales manufacturing |
| 333998 | Jacks, hydraulic and pneumatic, manufacturing |
| 333998 | Motor truck scales manufacturing |
| 333998 | Parcel post scales manufacturing |
| 333998 | Post office-type scales manufacturing |