| 731511 | 731511 - Chain; articulated link, roller, of iron or steel |
| 731512 | 731512 - Chain; articulated link, (other than roller), of iron or stee |
| 731519 | 731519 - Chain; articulated link parts, of iron or steel |
| 731520 | 731520 - Chain; skid, articulated link chain and parts thereof, of iro |
| 731581 | 731581 - Chain; stud-link chain, of iron or steel |
| 731582 | 731582 - Chain; welded link chain, of iron or steel |
| 731589 | 731589 - Chain; n.e.c. in heading no. 7315, of iron or steel |
| 731590 | 731590 - Chain; parts n.e.c. in heading no. 7315, of iron or steel |