A brief description of our own spare parts inventory is that it is the main force of China's military electronics industry, the national team of the internet and information technology industry, and the national strategic scientific and technological force. China Electronics Technology Group Corporation (CETC) has a relatively complete technological innovation system in the field of electronic information, occupying a leading position in technology in areas such as electronic equipment, network information system, industrial foundation, and network security. CETC shoulders the important responsibility of supporting technological self-reliance, promoting national defense modernization, accelerating the development of digital economy, and serving the people's livelihood.