Sub Headings of 3921
| 3921.11.00.00 | Of polymers of styrene |
| 3921.12.11.00 | Over 70 percent by weight of plastics |
| 3921.12.15.00 | Other (229) |
| 3921.12.19. | Other |
| 3921.12.50.00 | Other |
| 3921.13.11.00 | Over 70 percent by weight of plastics |
| 3921.13.15.00 | Other (229) |
| 3921.13.19. | Other |
| 3921.13.50.00 | Other |
| 3921.14.00.00 | Of regenerated cellulose |
| 3921.19.00.00 | Of other plastics |
| 3921.90.11.00 | Over 70 percent by weight ofplastics |
| 3921.90.15.00 | Other (229) |
| 3921.90.19. | Other |
| 3921.90.21.00 | Products with textile components in which cotton predominates by weight overany other single textile fiber |
| 3921.90.25. | Products with textile components in which man-made fiberspredominate by weight over any other single textile fiber |
| 3921.90.29.00 | Other |
| 3921.90.40. | Flexible |
| 3921.90.50. | Other |