On 8th of September, 1922 was made a decision on the plenum of the Tashino party committee about the renaming of Tashino plant in Pervomaysk ironworks.

The work on building of the narrow-gauge railway Tashino-Shatki is finished, that allowed to bring down essentially the production’s cost value.

From 1930 started according to the task of state plan the manufacturing of the brake blocks, the prototypes of the brake cylinders and bushes to the 16-ton carriages.

In 1937 settled Pervomaysk plant the manufacturing of the high-alloy chrom-nickel cast iron and ferrophosphorus.

In 1939 the manufacturing of the brake cylinders, Matrosov’s chambers, the caps and the brackets is organized.