 As a result of the continuation of this work in the 1942–1944 years at the Ural's tank factory were developed even more powerful medium tanks T-43 and T-44.In the early days of World War II, the Soviet government has set task for designers-tank-builders to ensure a significant expansion of the T-34 tank production, their production was transferred to several factories of the Volga region, the Urals, in Siberia.Development of production of T-34 tanks by factories with different equipment composition, with low qualification of the majority of workers, many of whom were adolescents and women, made possible by good process flue design, that to a large extent, in addition to the work of engineers, determined in the daily hard work of designers on simplification of the tank, finding substitutes for scarce materials, adapting its design to mass production.