| 3421 | Submerged Arc Welding Machines | Company Product |
| 3422 | Submersible | Company Product |
| 3423 | Submersible Aerator | Company Product |
| 3424 | Submersible Aerators | Company Product |
| 3425 | Submersible Centrifugal Impeller Pumps Overhaul | Company Product |
| 3426 | Submersible Centrifugal Impeller Pumps Repair | Company Product |
| 3427 | Submersible Electric Motors | Company Product |
| 3428 | Submersible Electric Pumps | Company Product |
| 3429 | Submersible Mixers | Company Product |
| 3430 | Submersible Pressure Transmitters | Company Product |
| 3431 | Submersible Pump Testing | Company Product |
| 3432 | Submersible Pumps | Company Product |
| 3433 | Submersible Seawater Pumps | Company Product |
| 3434 | Submersible Sewage Pumps | Company Product |
| 3435 | Submersible Three-Phase Cast Iron Drainage Pumps | Company Product |
| 3436 | Submersible Three-Phase Cast Iron High Volume Drainage Pumps | Company Product |
| 3437 | Submersible Three-Phase Cast Iron Slurry Pumps | Company Product |
| 3438 | Submersible Three-Phase Portable Drainage Pumps | Company Product |
| 3439 | Submersible Wastewater Pumps | Company Product |
| 3440 | Submersibles | Company Product |
| 3441 | Submicron | Company Product |
| 3442 | Subminiature Circular Connectors | Company Product |
| 3443 | Subminiature Connectors | Company Product |
| 3444 | Subsea Pressure Regulators | Company Product |
| 3445 | Subsea Riser Connectors | Company Product |
| 3446 | Substrate Propagation | Company Product |
| 3447 | Subterranean Termite Control | Company Product |
| 3448 | Subterranean Termite Pest Control | Company Product |
| 3449 | Subwoofers | Company Product |
| 3450 | Suction & Discharge Hose | Company Product |