| English | eng-000 |
| Toroidal inductors and transformers | |
| български | bul-000 | Тороид |
| català | cat-000 | Toroide |
| čeština | ces-000 | Toroid |
| Deutsch | deu-000 | Ringkern |
| suomi | fin-000 | Toroidi |
| polski | pol-000 | Toroid |
| slovenčina | slk-000 | Toroid |
| español | spa-000 | Toroide |
| svenska | swe-000 | Toroid |