| 451 | Office Meeting Tables | Company Product |
| 452 | Office Cabinets | Company Product |
| 453 | Office System Furniture | Company Product |
| 454 | Office Maintenance Services | Company Product |
| 455 | Office Furniture Accessories | Company Product |
| 456 | Office Equipment | Company Product |
| 457 | Other Basic Construction Materials | Company Product |
| 458 | Operable & Relocatable Walls | Company Product |
| 459 | Off The Road Tyres | Company Product |
| 460 | ORP Transmitters | Company Product |
| 461 | Oil Filled Transformers | Company Product |
| 462 | Office Tables | Company Product |
| 463 | O-rings Seals | Company Product |
| 464 | Oil, Grease Seals | Company Product |
| 465 | Office Plastic Trays | Company Product |
| 466 | Open Plan System Partitions | Company Product |
| 467 | Operable & Relocatable Wall Partitions | Company Product |
| 468 | Oxygen Sensors | Company Product |
| 469 | Oxygen Packings | Company Product |
| 470 | Oxytetracycline | Company Product |
| 471 | Oyster Sauce Manufacturers | Company Product |
| 472 | Oxygen Gas Distributors | Company Product |
| 473 | Oxygen Level Sensors | Company Product |
| 474 | Oxygen Gas Manufacturers | Company Product |
| 475 | Oxygen Dissolved Level Meters | Company Product |
| 476 | Overload Relays | Company Product |
| 477 | Overhead Projectors | Company Product |
| 478 | Oxalic Acid | Company Product |
| 479 | Overhead Cranes | Company Product |
| 480 | Overalls | Company Product |