| 631 | Engine Rebuilding | Company Product |
| 632 | Electric Pipe Bevelling Machines | Company Product |
| 633 | Electric Servo Drive | Company Product |
| 634 | Explosion Proof Leadlamp | Company Product |
| 635 | Explosion Proof Floodlight | Company Product |
| 636 | Engine Welders | Company Product |
| 637 | Electric Components | Company Product |
| 638 | Electric Fittings | Company Product |
| 639 | Electric Air Compressors | Company Product |
| 640 | Environmental Day | Company Product |
| 641 | Earth Leakage Residual Current Devices | Company Product |
| 642 | Elr Din Mount | Company Product |
| 643 | Earth Leakage | Company Product |
| 644 | Earth-Leakage Protection Relays | Company Product |
| 645 | Earth Leakage Relays (din Mount) | Company Product |
| 646 | Earth Leakage Relays | Company Product |
| 647 | Electrical Slip Rings | Company Product |
| 648 | Electromechanical Hour Meters | Company Product |
| 649 | Electronic Pulse Counters | Company Product |
| 650 | Earth-Resistance Meters | Company Product |
| 651 | Earth Test Equipment | Company Product |
| 652 | Electronic Voltage Stabilizers | Company Product |
| 653 | Electrical Calibrators | Company Product |
| 654 | Emi Filters | Company Product |
| 655 | Electric Buzzers | Company Product |
| 656 | Exhaust Insulating Wraps | Company Product |
| 657 | Exhaust Wraps | Company Product |
| 658 | Electric And Manual Chain Hoists | Company Product |
| 659 | Electrode Welding Machines | Company Product |
| 660 | Electrolytic Marking Systems | Company Product |