| Naics index | Naics index description |
|---|---|
| 334519 | Torsion testing equipment manufacturing |
| 334519 | Transducers, pressure, manufacturing |
| 334519 | Transits, surveying, manufacturing |
| 334519 | T-squares (drafting) manufacturing |
| 334519 | Ultrasonic testing equipment (except medical) manufacturing |
| 334519 | Vibration meters, analyzers, and calibrators, manufacturing |
| 334519 | Viscosimeters (except industrial process type) manufacturing |
| 334519 | Wall clocks manufacturing |
| 334519 | Watch jewels manufacturing |
| 334519 | Watchcase manufacturing |