Passage: Despite its problems, the T-18 was an improvement over the FT-17 and T-16, so 108 tanks were ordered into production starting in February 1928. Production took place at the Leningrad Obukhov Factory (later renamed Bolshevik Factory). The first batch of 30 tanks were found to have serious technical problems. After several interruptions, and the inclusion of the Motovilikhinsky Machine-Building Plant (Former Perm Artillery) to increase production the two plants were able to deliver 96 of the promised 133 tanks in 1929.

Question: Where did the production took place?
Leningrad Obukhov Factory