| 2911 | Cooling Tower Chemicals | Company Product |
| 2912 | Cooling Tower Cleaners | Company Product |
| 2913 | Cooling Tower Dispersant | Company Product |
| 2914 | Cooling Tower Fill Cleaners | Company Product |
| 2915 | Cooling Tower Pumps | Company Product |
| 2916 | Cooling Tower Vacuums | Company Product |
| 2917 | Cooling Water Control | Company Product |
| 2918 | Cooling Water Injection | Company Product |
| 2919 | Cooling Water Treatment Chemicals | Company Product |
| 2920 | Coordinate Measuring Instruments | Company Product |
| 2921 | Coordination Compounds | Company Product |
| 2922 | Copi Marble Chair | Company Product |
| 2923 | Copi Round Marble Table | Company Product |
| 2924 | Copiers | Company Product |
| 2925 | Copper | Company Product |
| 2926 | Copper Alloy | Company Product |
| 2927 | Copper Anodes | Company Product |
| 2928 | Copper Arc | Company Product |
| 2929 | Copper Bar | Company Product |
| 2930 | Copper Bars | Company Product |
| 2931 | Copper Braided Packings | Company Product |
| 2932 | Copper Brazing | Company Product |
| 2933 | Copper Brazing Alloys | Company Product |
| 2934 | Copper Busbars | Company Product |
| 2935 | Copper Bushing | Company Product |
| 2936 | Copper Cable Lugs | Company Product |
| 2937 | Copper Clad Laminates | Company Product |
| 2938 | Copper Electrode Tubes | Company Product |
| 2939 | Copper Electroplating | Company Product |
| 2940 | Copper Fit Fittings | Company Product |