 During World War II large-scale production of armoured materiel was organized at the plant.At first the plant manufactured armoured tank hulls, later expanding to production of T-34 tanks and the SU-122, SU-85, and SU-100 assault guns and tank destroyers based on the basic T-34 design.The self-propelled gun mounts built at Uralmash demonstrated their effectiveness on the battlefield as a successful combination of maneuverability of T-34 tanks and huge firepower of ordnance pieces.