| 631 | Air Filter, Regulator & Lubricator Units | Company Product |
| 632 | Air Filters | Company Product |
| 633 | Air Fittings | Company Product |
| 634 | Air Floating Cylinder Boring Machine | Company Product |
| 635 | Air Flow Control Valves | Company Product |
| 636 | Air Flow Controls | Company Product |
| 637 | Air Flow Sensor | Company Product |
| 638 | Air Flowmeters | Company Product |
| 639 | Air Foil Bearing Turbo Blowers | Company Product |
| 640 | Air Fragrances | Company Product |
| 641 | Air Freight | Company Product |
| 642 | Air Freshener | Company Product |
| 643 | Air Freshener Chemicals | Company Product |
| 644 | Air Freshener Dispensers | Company Product |
| 645 | Air Fresheners | Company Product |
| 646 | Air Gauges | Company Product |
| 647 | Air Gouging | Company Product |
| 648 | Air Grippers | Company Product |
| 649 | Air Guns | Company Product |
| 650 | Air Handling Units | Company Product |
| 651 | Air Heaters | Company Product |
| 652 | Air Hoists | Company Product |
| 653 | Air Horns | Company Product |
| 654 | Air Hose Claw Couplings | Company Product |
| 655 | Air Hose Connection | Company Product |
| 656 | Air Hose Couplings | Company Product |
| 657 | Air Hose Flange Connection | Company Product |
| 658 | Air Hose Reels | Company Product |
| 659 | Air Hose Tubings | Company Product |
| 660 | Air Hoses | Company Product |