Sub Headings of 7207
| 7207.11.00.00 | Of rectangular (including square) cross section, the width measuring less thantwice the thickness |
| 7207.12.00. | Other, of rectangular (other than square) cross section |
| 7207.19.00. | Other |
| 7207.20.00. | Containingby weight 0.25 percent or more of carbon |