| 511 | Marine Cables | Company Product |
| 512 | Marine Calibrators | Company Product |
| 513 | Marine Carpentry | Company Product |
| 514 | Marine Carpets | Company Product |
| 515 | Marine Ceiling Panels | Company Product |
| 516 | Marine Chemicals | Company Product |
| 517 | Marine Clear View Screens | Company Product |
| 518 | Marine Clearview Screens | Company Product |
| 519 | Marine Clocks | Company Product |
| 520 | Marine Clutches | Company Product |
| 521 | Marine Coatings | Company Product |
| 522 | Marine Commercial Engines | Company Product |
| 523 | Marine Communication & Navigation Equipment | Company Product |
| 524 | Marine Compasses | Company Product |
| 525 | Marine Composite Panel | Company Product |
| 526 | Marine Connectors | Company Product |
| 527 | Marine Consultants | Company Product |
| 528 | Marine Contractors | Company Product |
| 529 | Marine Controls | Company Product |
| 530 | Marine Coolers | Company Product |
| 531 | Marine Cord Sets | Company Product |
| 532 | Marine Coveralls | Company Product |
| 533 | Marine Cranes | Company Product |
| 534 | Marine Curtain | Company Product |
| 535 | Marine D Fenders | Company Product |
| 536 | Marine Diesel Engine Pumps | Company Product |
| 537 | Marine Diesel Engines | Company Product |
| 538 | Marine Diesel Motor Oil | Company Product |
| 539 | Marine Distress Signals | Company Product |
| 540 | Marine Dock Fenders | Company Product |