| Grandjean – Nidau
|
Kretzschmar – Biel
|
| Calderari – Ipsach
|
Liechti – Orpund
|
| Racine – Lamboing (Twann)
|
Tammaro – Büren a.A.
|
| Jost – Utzenstorf
|
Blagov – Aarberg
|
metallbau | wintergärten | verglasungen