State-owned medium-sized enterprises. Huangpu Ordnance Repair Factory was established in 1953. It is mainly engaged in the maintenance of naval weapons and equipment and the development of various types of tooling equipment. It has 300 or more employees and an operating income of more than 20 million yuan, reaching the standard of a medium-sized enterprise. It is a state-owned military industry enterprise and factory. Located in Changzhou Street, Huangpu District, Guangzhou, adjacent to Huangpu Military Academy, it is a key enterprise in the naval equipment support industry.