noun
arsenal; arms factory
Refers specifically to a factory that manufactures weapons and ammunition, often under military or government control. The term is somewhat formal and may appear in historical or military contexts.
この工廠では小銃と弾薬を製造している。
This arsenal produces rifles and ammunition.
戦時中、多くの工廠が空襲の標的になっ
During the war, many arms factories became targets of air raids.
The word 工廠 is a Sino-Japanese compound combining 工 (work, industry) and 廠 (factory, workshop). It was adopted in the late 19th to early 20th century to refer to government-operated military factories, and its usage is now largely historical or domain-specific.