1. Shanghai Le Fei Audio Equipment Co., Ltd.: specializes in the manufacture and research of audio equipment, mainly producing audio products such as speakers and power amplifiers.
2. Shanghai Qunda Electronics Co., Ltd.: Specializing in the production and sale of electronic components. The main products include resistors, capacitors and inductors.
3. Shanghai Internet Security Electronics Co., Ltd.: Committed to the research and development of network security technology and product supply, providing network security solutions and products.
4. Shanghai Xingang Electronic Technology Co., Ltd.: Focus on the production of R&D and RF communication technologies and products. The main products are RF modules and antennas.
5. Shanghai Jinghua Technology Co., Ltd.: Specializing in the production of R&D and flat panel display technologies and products. The main products include liquid crystal displays and liquid crystal modules.
Please note that the above are just some electronics factories I have learned, and it is not excluded that there are other electronics factories in Chedun Export Processing Zone. If you need to know more detailed information, it is recommended to consult relevant institutions or parties.