According to the enterprise survey, Ding Yang Science and Technology has nothing to do with Nanjing Emperor. Ding Yang Science and Technology focuses on the production and sales of R&D, RF microwave devices and components, and its products are widely used in mobile communication, radar, electronic countermeasures and other fields. Nanjing Diva is a high-tech enterprise focusing on wireless communication modules and Internet of Things applications. Its main products include 2G/3G/4G wireless communication module and Internet of Things communication module.