云意电气：目前业务范围覆盖多种控制器产品

Group 1 - The core viewpoint of the article is that Yunyi Electric (300304) is actively engaged in the automotive electronics sector, focusing on various controller products [1] - The company's business scope includes multiple types of controller products, indicating a diversified product line [1] - The production process of these products involves PCBA assembly technology, highlighting the company's technical capabilities in manufacturing [1]