| 661 | Heavy Duty Pressure Sensors | Company Product |
| 662 | Heavy-Duty Pressure Washers | Company Product |
| 663 | Heavy Duty Pullers | Company Product |
| 664 | Heavy Duty Pumps | Company Product |
| 665 | Heavy Duty Recessed Manhole Covers | Company Product |
| 666 | Heavy Duty Recessed Manhole Frames | Company Product |
| 667 | Heavy-Duty Reservoirs | Company Product |
| 668 | Heavy-Duty Roller Frame | Company Product |
| 669 | Heavy-Duty Roller Frames | Company Product |
| 670 | Heavy-Duty Roller Handles | Company Product |
| 671 | Heavy-Duty Roller Refills | Company Product |
| 672 | Heavy-Duty Ropes | Company Product |
| 673 | Heavy Duty Rubber Mat | Company Product |
| 674 | Heavy Duty Scaffolding | Company Product |
| 675 | Heavy Duty Scarifier Machines | Company Product |
| 676 | Heavy Duty Scissor Lifts | Company Product |
| 677 | Heavy Duty Seal-Less Pumps | Company Product |
| 678 | Heavy Duty Shear Beam Load Cells | Company Product |
| 679 | Heavy Duty Shelves | Company Product |
| 680 | Heavy Duty Shelvings | Company Product |
| 681 | Heavy-Duty Shoring System | Company Product |
| 682 | Heavy Duty Short Frames | Company Product |
| 683 | Heavy-Duty Stainless Steel Drive | Company Product |
| 684 | Heavy-Duty Stainless Steel Plumbing Tool | Company Product |
| 685 | Heavy Duty Staplers | Company Product |
| 686 | Heavy Duty Step Ladders | Company Product |
| 687 | Heavy Duty Straddled Leg Stackers | Company Product |
| 688 | Heavy Duty Tarpaulins | Company Product |
| 689 | Heavy Duty Tire Changers | Company Product |
| 690 | Heavy Duty Tools | Company Product |