Bayan haka, an ba da umarnin samar da tankuna 108 da aka fara samarwa a watan Fabrairun 1928. An samar da shi a masana'antar Obukhov ta Leningrad (wanda daga baya aka sake masa suna da masana'antar Bolshevik). An gano rukunin farko na tankuna 30 suna da matsaloli masu mahimmanci. Bayan katsewa da yawa, da kuma hada da Motovilikhinsky Machine-Building Plant (tsohon Perm Artillery) don kara yawan samarwa shuke-shuke biyu sun sami damar isar da tankuna 96 daga cikin tankuna 133 da aka alkawarta a shekarar 1929. Tambaya: A ina ne aka samar?
Masana'antar Obukhov ta Leningrad