| 1651 | Tumbling Barrels | Company Product |
| 1652 | Tumbling Media & Compound | Company Product |
| 1653 | Tumbling Media Abrasives | Company Product |
| 1654 | Tumbling Services | Company Product |
| 1655 | Tuners | Company Product |
| 1656 | Tuners & Metronome | Company Product |
| 1657 | Tungsten & Tungsten Products | Company Product |
| 1658 | Tungsten Carbide Burrs | Company Product |
| 1659 | Tungsten Carbide Dies | Company Product |
| 1660 | Tungsten Carbide Tipped Sawblades | Company Product |
| 1661 | Tungsten Electrode | Company Product |
| 1662 | Tungsten Halogen Light Fittings | Company Product |
| 1663 | Tungsten Halogen Lights | Company Product |
| 1664 | Tungsten Inert Gas Welding | Company Product |
| 1665 | Tuning Fork | Company Product |
| 1666 | Tuning Forks | Company Product |
| 1667 | Tunnel | Company Product |
| 1668 | Tunnel Boring Equipment | Company Product |
| 1669 | Tunnel Boring Equipments | Company Product |
| 1670 | Tunnel Boring Machines | Company Product |
| 1671 | Tunnel Concrete Mixer Systems | Company Product |
| 1672 | Tunnel Fans | Company Product |
| 1673 | Tunnel Mixers | Company Product |
| 1674 | Tunnel Protection | Company Product |
| 1675 | Tunnelling Contractors | Company Product |
| 1676 | Tunnelling Equipment | Company Product |
| 1677 | Turbidimeters | Company Product |
| 1678 | Turbidity Controls | Company Product |
| 1679 | Turbidity Meter | Company Product |
| 1680 | Turbidity Meters | Company Product |