- 2 parts, consisting of housing and mineral fibreboard
- all-round groove denotes the maximum opening dimension
- 2 parts, consisting of housing and mineral fibreboard
- all-round groove denotes the maximum opening dimension
- 2 parts, consisting of housing and mineral fibreboard
- all-round groove denotes the maximum opening dimension
- 2 parts, consisting of housing and mineral fibreboard
- all-round groove denotes the maximum opening dimension
- 2 parts, consisting of housing and mineral fibreboard
- all-round groove denotes the maximum opening dimension
- 2 parts, consisting of housing and mineral fibreboard
- all-round groove denotes the maximum opening dimension