Wikipedia
Kolzam
Kolzam is a Polish company, based in Racibórz, specialising in the production, maintenance, and modernisation of railway rolling stock. The company's products include the Kolzam RegioVan, SPA-66, 208M, electric multiple units; and has been producing railway maintenance vehicles including the Kolzam MS-W-01. Currently, the company is part of Mavex Record, which is a Hungarian company specialising in railway vehicles and components.