| 1621 | Tumbling Barrels | Company Product |
| 1622 | Tumbling Media & Compound | Company Product |
| 1623 | Tumbling Media Abrasives | Company Product |
| 1624 | Tumbling Services | Company Product |
| 1625 | Tuners | Company Product |
| 1626 | Tuners & Metronome | Company Product |
| 1627 | Tungsten & Tungsten Products | Company Product |
| 1628 | Tungsten Carbide Burrs | Company Product |
| 1629 | Tungsten Carbide Dies | Company Product |
| 1630 | Tungsten Carbide Tipped Sawblades | Company Product |
| 1631 | Tungsten Electrode | Company Product |
| 1632 | Tungsten Halogen Light Fittings | Company Product |
| 1633 | Tungsten Halogen Lights | Company Product |
| 1634 | Tungsten Inert Gas Welding | Company Product |
| 1635 | Tuning Fork | Company Product |
| 1636 | Tuning Forks | Company Product |
| 1637 | Tunnel | Company Product |
| 1638 | Tunnel Boring Equipment | Company Product |
| 1639 | Tunnel Boring Equipments | Company Product |
| 1640 | Tunnel Boring Machines | Company Product |
| 1641 | Tunnel Concrete Mixer Systems | Company Product |
| 1642 | Tunnel Fans | Company Product |
| 1643 | Tunnel Mixers | Company Product |
| 1644 | Tunnel Protection | Company Product |
| 1645 | Tunnelling Contractors | Company Product |
| 1646 | Tunnelling Equipment | Company Product |
| 1647 | Turbidimeters | Company Product |
| 1648 | Turbidity Controls | Company Product |
| 1649 | Turbidity Meter | Company Product |
| 1650 | Turbidity Meters | Company Product |