The PKP Cargo ET22 1045 seen between Opalenica and Porażyn

The ET22 six-axle freight locomotives were based on the successful EU07 universal locomotive's design but with improved structure. 1183 units were produced for Poland and 20 to Morocco making it the largest numbered standard-gauge electric locomotive built in Europe (and potentially, the world). Usually they don't appear in Slovakia and the Czech Republic as the Co' Co' axle formula doesn't suite the curvy railways much, but they do pull trains as far as Ostrava. In Slovakia, the High Tatras region, usually the two-section ET41 locomotives are used by PKP Cargo.