On July 1, 1920 Mytishchi plant was included in the "strike group" of the largest enterprises in Moscow and Moscow region, which should carry the most important work to restore the national economy and, especially, transportation.

Management of the plant was trying to overcome the effects of the Civil War, to solve the supply problems, to get the necessary tools and equipment.

To conduct construction and repair works were created two new divisions: repair and construction, and mechanical repair. For more than two years, these departments have implemented a lot of repair of industrial buildings, steam economy, transport facilities.

In 1924 the Bureau of production and technical control were created. As a result of the measures the output of the plant began to grow rapidly and in 1926 gave about two standards of products from pre-war level.

1925 - 1926 years were critical in the Carriage Works. Since that time, his specialty as a Carriage Company began to recover, production of agricultural machinery decreased.

In 1926, the plant designers Babin and Dvuhsherstnov drafted the country's first 19-meter metal car for the electrified railway. Since then, the plant began mass production of new types of cars.

In 1929, the Mytishchi train plant had produced the first electric passenger train in Russia.

In the autumn of 1930, work on the reconstruction and rebuilding of the plant began. At the plant, a workshop for the repair of equipment was created, the assembly of tram and suburban cars was switched to a streaming system, an electric welding shop was organized, stamping was implemented.

In 1932, the specialization of the enterprise was defined- the production of trams and 19-meter railway cars.

May 17, 1933, the plant's management issued an order to begin work on metro cars. And starting from July 1, the staff of the autogenous workshop started welding of bogies and conductors for these cars.

In January 1935, the plant produced the first 40 metro cars. The metro cars manufactured at the Mytishchi plant, for the first time in the practice of domestic railcar building were all-metal, welded structures. The cars of the first type "A" had high reliability. Cars of type "A" and "B" of the 1934-1939 edition worked in the Moscow metro for almost forty years.

In the same year, the workers mastered the production of roller boxes, a unit which was extremely necessary in the car building industry, which Russia had previously bought abroad.

In 1939, serial production of trams for Moscow began.In

May 1940, serial production of two-axle 20-ton platforms and containers was mastered and adjusted. Mytishchi plant steadily gained momentum and became one of the largest enterprises of the country's car building industry.