sentences:  In part due to the German-Polish trade war in the 1920s, the industry of Chorzów, a border city at that time, stagnated until 1933.In 1927, a division of Huta Piłsudski was separated into a company making rail cars, trams and bridges; today it operates as Alstom-Konstal.The State Factory of Nitrogen Compounds (Państwowa Fabryka Związków Azotowych) was in 1933 merged with a similar company (largely its copy) in Tarnów-Mościce.