20132310 — Ceri, lantani, praseodimi, neodimi i samari
| Code | Description |
|---|---|
| 2013231006 | Ceri, lantani, praseodimi, neodimi i samari |
| Code | Description | Partitions |
|---|---|---|
| 20132300 | Metalls alcalins o metalls alcalinoterris, metalls de les terres rares, escandi, itri; mercuri | 04 |