The name of the DEL team Kölner Haie means `` Cologne Sharks ' , and Krefeld Pinguine means `` Krefeld Penguins '' .
North Rhine-Westphalia is home to DEL teams Kölner Haie ( Cologne Sharks ) , Krefeld Pinguine ( Krefeld Penguins ) , DEG Metro Stars and Iserlohn Roosters.
North Rhine-Westphalia