What type of new technology did the Ming Dynasty have?

In the Ming Dynsty, the development of the handicraft industry promoted market economy and urbanization so that people then lived an abundant and happy life. Compared with the handicraft nowadays, the technology during that time was very outstanding.
Additionally, the military technology was relatively advanced in that period. A kind of gun called 'huochong gun' and powerful artillery were invented in the late period of the Ming Dynasty.