1.In 2022, Zhongjing Electronics (002579) ranked fourth in the price-earnings ratio of listed companies with communication PCB concept. The company's chip stacking technology is very strong, the technical level is first-class, the equipment is excellent and the best, and its performance has increased greatly in the first quarter of each year.
2. 17, chongda technology (0028 15). This upper-middle ranking also represents that Chongda Technology has room for upward climb.