Wärtsilä to Supply Engines for LNG-Fuelled Ro-Pax Ships in Poland 15 February 2022 The ships will be operated by ferry companies Unity Line and Polferries.Author: Capt. Johnhttps://shipandbunker.com/news/emea/702222-wartsila-to-supply-engines-for-lng-fuelled-ro-pax-ships-in-poland