In 1923 the arsenal began making a Type 12 infantry gun, with a maximum range of 5,000 meters.
In 1926, the Arsenal at Taiyuan had produced 1500 rifles, 500 Mauser type Broom handle Military Pistols, 300 mortars, mortar shells, hand grenades and three million rounds of ammunition per month with foreign technicians, assisted by American trained Chinese, supervising and training 8,000 Chinese workers.
Meanwhile, munitions industry production was moved away from the Japanese resulting in a sudden reduction in output.
In the later Sino-Japanese War period, these factories monthly production of rifles was 800, light machine guns 300, pistols only a few dozens, hand grenades approximately 10,000.
By late 1948 during the Chinese Civil War, the monthly production of the Arsenal was 3,000 Mauser Type 24 rifles, 300 7.92 mm ZB 26 light machine guns, 60 7.92 mm Type 24 Maxim water-cooled machine guns (MG08/30), 8 75 mm field guns, and 60,000 grenades, 15,000 mortar rounds, 7,000 rounds of artillery shells, swords, bayonets and small arms ammunition.
Over 150,000 Red Army soldiers surrounded the city and it was necessary to air drop ingots of brass for the production of ammunition casings.