DF-4

The Dong Feng is a long-range two-stage Chinese Intermediate-range ballistic missile or Intercontinental ballistic missile with liquid fuel .It was thought to be deployed in limited numbers in underground silos beginning in the 1970s and early 1980s. The Dong Feng 4 has a takeoff thrust of 1,224.00 kN, a takeoff weight of 82000 kg, a diameter of 2.25 m, a length of 28.05 m and a fin span of 2.74 m. The range of the Dong Feng 4, which is equipped with a 2,190 kg nuclear warhead with 3.3 Mt yield, with a nominal range of 4,750 km. The missile uses an inertial guidance system, resulting in a CEP of 1,500 meters.The decision to develop the DF-4 was made in 1965 in response to the U.S. ballistic missile submarine patrols that began operating out of Guam. The missile's designer has been variously identified as Ren Xinmin or Tu Shou'e , and it was produced at Factory also known as Capital Machine Shop
There were two versions of the missile developed, one version housed in caves or garages to be rolled out on launch and another silo based version.
The U.S. DoD estimates that the missile will continue to serve as a regional deterrence instrument until they can be replaced by the DF-31