| 2611 | Construction Machines | Company Product |
| 2612 | Construction Management | Company Product |
| 2613 | Construction Materials | Company Product |
| 2614 | Construction Metal Decks | Company Product |
| 2615 | Construction Monitoring | Company Product |
| 2616 | Construction Passenger Hoists | Company Product |
| 2617 | Construction Project Management Softwares | Company Product |
| 2618 | Construction Pumps | Company Product |
| 2619 | Construction Riggings | Company Product |
| 2620 | Construction Road Plates | Company Product |
| 2621 | Construction Rubber | Company Product |
| 2622 | Construction Safety | Company Product |
| 2623 | Construction Scheduling Management Softwares | Company Product |
| 2624 | Construction Sealants | Company Product |
| 2625 | Construction Services | Company Product |
| 2626 | Construction Signboard | Company Product |
| 2627 | Construction Site Passenger Hoists | Company Product |
| 2628 | Construction Site Safety Nets | Company Product |
| 2629 | Construction Steel Structure | Company Product |
| 2630 | Construction Tools | Company Product |
| 2631 | Construction Use | Company Product |
| 2632 | Construction Vibrating Rollers | Company Product |
| 2633 | Construction Vibrators | Company Product |
| 2634 | Construction Waste | Company Product |
| 2635 | Construction Wastes | Company Product |
| 2636 | Constuction | Company Product |
| 2637 | Consulting Engineers | Company Product |
| 2638 | Consulting Professional Engineers | Company Product |
| 2639 | Consumable | Company Product |
| 2640 | Consumable Products | Company Product |