DIN 46206-1 1985-06 DIN 46206-2-1971 DIN 48083-1 1985-04 DIN 48083-3 1985-04 din-connection-46228-1-1992-08 din-connection-46228-2 din-connection-46228-3-1992-02 din-connection-46228-4-1990-09 din-connection-46230-1980-03 din-connection-46234 din-connection-46235 din-connection-46237 din-connection-46329