MAUER Cylinders In this section you will find medium and high security cylinders for home, office and high security application, including Scandinavian oval and Rim cylinder standards - all of them can be grouped in Master key system (MKS). NW6High security cylinder - DIN NW4 / NW5High security cylinder - DIN DT1High security cylinder - DIN ELITE 2BDS & DIN ELITEBDS & DIN RL GBDS & DIN MLSBDS & DIN FAMILYBDS & DIN STANDARDBDS & DIN CLASSICBDS & DIN BATHROOM CYLINDERBDS & DIN