GKB
The abbreviation TBI stands for:
- Geilenkirchener circular path
- Community power plant in Bremen
- Graz- Köflacher rail and bus operations GmbH; until 2004 under the name: Graz- Köflacher Railway
- Graz- Köflacher railway and mining company
- Graubünden Cantonal
- Gipskartonbauplatte, see plasterboard
- Disambiguation
- Abbreviation