| 571 | Air Conditioning Contractors | Company Product |
| 572 | Air Conditioning Diffusers | Company Product |
| 573 | Air Conditioning Ductings | Company Product |
| 574 | Air Conditioning Equipment & Systems | Company Product |
| 575 | Air Conditioning Filters | Company Product |
| 576 | Air Conditioning Parts | Company Product |
| 577 | Air Conditioning Services | Company Product |
| 578 | Air Conditioning Spare Parts | Company Product |
| 579 | Air Conditioning Specialist | Company Product |
| 580 | Air Conditioning Units | Company Product |
| 581 | Air Conditioning, Refrigeration Evaporators | Company Product |
| 582 | Air Connectors | Company Product |
| 583 | Air Contamination | Company Product |
| 584 | Air Control Units | Company Product |
| 585 | Air Cooled Air Compressors | Company Product |
| 586 | Air Cooled Chiller With S/s Tank | Company Product |
| 587 | Air Cooled Chillers | Company Product |
| 588 | Air Cooled Diesel Engines | Company Product |
| 589 | Air Cooled Diesel Pumps | Company Product |
| 590 | Air Cooled Jumper Cable | Company Product |
| 591 | Air Cooled Petrol Engines | Company Product |
| 592 | Air Cooled Piston Compressors | Company Product |
| 593 | Air Cooled Screw Chillers | Company Product |
| 594 | Air Cooled Units | Company Product |
| 595 | Air Cooler Machines | Company Product |
| 596 | Air Coolers | Company Product |
| 597 | Air Cooling Machines | Company Product |
| 598 | Air Couplers | Company Product |
| 599 | Air Curtains | Company Product |
| 600 | Air Curtains & Screens | Company Product |