On November 15, Keelonghui reported that Qiangda Circuit (301628.SZ) stated on the investor interaction platform that in the field of self-driving cars, the company has responded to the research and development needs of downstream in-vehicle sensors, and developed millimeter-wave radar boards; the company has accumulated multiple core technologies in the technology of 77GHz millimeter-wave radar boards, including high-frequency materials, high TG value mixed pressing with FR4 materials, laser drilling micro-hole process, and multiple patents in aspects such as line width precision and angle control of antenna arrays. The company is dedicated to the research and production of printed circuit boards, will continue to pay attention to industry developments and market demand, actively expand market layout, strengthen R&D investment and talent reserves, and focus on developing products that meet emerging market demands.