| 541 | Air Compressor Valves | Company Product |
| 542 | Air Compressors | Company Product |
| 543 | Air Compressors 1Hp-25hp | Company Product |
| 544 | Air Compressors 25hp-100hp | Company Product |
| 545 | Air Compressors Above 500hp | Company Product |
| 546 | Air Compressors Rental | Company Product |
| 547 | Air Compressors Repair | Company Product |
| 548 | Air Con Filters | Company Product |
| 549 | Air Con Motor | Company Product |
| 550 | Air Con Repairs & Cleaning | Company Product |
| 551 | Air Con Servicing Singapore | Company Product |
| 552 | Air Cond Blower Motor | Company Product |
| 553 | Air-Cond Compressor | Company Product |
| 554 | Air Cond Condenser | Company Product |
| 555 | Air Cond Hose | Company Product |
| 556 | Air Cond Repair | Company Product |
| 557 | Air Cond Spare Parts | Company Product |
| 558 | Air-Cond Sponge | Company Product |
| 559 | Air-Condition Accessories | Company Product |
| 560 | Air Condition Compressor | Company Product |
| 561 | Air-Condition Ducted | Company Product |
| 562 | Air Condition Panel | Company Product |
| 563 | Air Condition Repair | Company Product |
| 564 | Air Conditioner | Company Product |
| 565 | Air Conditioner Contractor | Company Product |
| 566 | Air Conditioner Drainage Pump | Company Product |
| 567 | Air Conditioner Specialist | Company Product |
| 568 | Air Conditioner Thermostats | Company Product |
| 569 | Air Conditioners | Company Product |
| 570 | Air-Conditioning | Company Product |