PGZ-70

A double-barreled 57 mm tracked self-propelled anti-aircraft gun based on the Soviet ZSU-57-2, developed by Military Plant #447 for China's foreign trade. Unlike the ZSU-57-2, the chassis of the Type 59 tank was used and adapted to the turret of the ZSU. Prototype trials showed the vehicle had great destructive power and firepower and was simple to operate and service. Nevertheless, it never saw mass production.