JL-1

The Julang-1, also known as the JL-1 and in US nomenclature as the CSS-N-3, was China's first solid fueled ballistic missile.
Research and development began in 1967 and detailed design in the early 1970s, with a first land launch 30 April 1982 and a sea launch from a Project 629A (Golf) class submarine on 12 October 1982. The general designer of the missile is Huang Weilu 1916-; academician Chen Deren served as deputy chief designer. The missile was assembled at Factory 307 (Nanjing Dawn Group Limited Liability
The JL-1 was deployed on Daqingyu/Xia class submarine 406 in 1986. The Type 092 Daqingyu/Xia class nuclear submarines have 12 launch tubes.
The JL-1 was initially tested and deployed on the PLAN's modified Golf class SSB. The Golf has since been modified again for further testing of other missiles, such as the JL-2, which has test launched multiple times with varying levels of success.
The DF-21 appears to be a land-based version of the JL-1.