single lock,single lock with safety gates /TECH,BUILDING/
[DE] Kammerschleuse; Schutzschleuse
[EN] single lock; single lock with safety gates
[FR] écluse de garde; écluse à sas
single lock,single lock with safety gates
[DE] Kammerschleuse; Schutzschleuse
[EN] single lock; single lock with safety gates
[FR] écluse de garde; écluse à sas