This Rock-O-Rama imprint released several Störkraft EPs. The first four are estimated to be from as early as 1993/4. The fifth is likely from a later date. Störkraft Records isn't necessarily the official name of this label, as it does not appear on any of the releases.
The first four EPs were originally intended to be Störkraft's final album, but for reasons unknown, Herbert decided to release it as four EPs. The fifth EP was a shortened version of their live album, which was banned in 1992.