Which primers are used in DAG 7.62MMx51/.308 German Training blue plastic rounds?

Which primers are used in DAG 7.62MMx51/.308 German Training blue plastic rounds? thanks

DM18 - DM1032B1 and DM1030A2
DM18B1 - DM1030A2B1
DM18A1B1 - DM1030A2B1
DM48 - DM1030A2
DM48B1 - DM1030A2B1
DM48A1B1 - DM1030A2B1

Thanks for prompt reply. Trying to find out the meaning of provided details.