世运电路：公司暂不涉及可控核聚变装置

Group 1 - The company, Shiyun Circuit (603920), does not currently engage in controllable nuclear fusion devices [1] - The core business of the company is the research, production, and sales of printed circuit boards (PCBs) [1] - The company's products are primarily used in various fields including automotive electronics, new energy storage, industrial control, consumer electronics, cloud computing and communication, and medical applications [1]