Rubtsovsk (Russian: Рубцо́вск, pronounced [rʊpˈtsofsk]) is a city in Altai Krai, Russia, located on the Aley River (Ob's tributary) 281 kilometers (175 mi) southwest of Barnaul. Population: 147,002 (2010 Census); 163,063 (2002 Census); 171,792 (1989 Soviet census); 167,000 (1975); 111,000 (1959); 75,334 (1939). Rubtsovsk is the industrial center of Western Siberia. In particular, mechanical engineering. The city-forming enterprises are the Altai Tractor Plant, the Altai Agricultural Engineering Plant, and the Altai Tractor Electrical Equipment Plant. .
https://en.wikipedia.org/wiki/Rubtsovsk