通达动力：在新能源汽车驱动电机铁芯配套业务方面与比亚迪进行长期合作

Group 1 - The core point of the article is that Tongda Power (002576.SZ) has established a long-term partnership with BYD in the field of electric vehicle drive motor core components [1] Group 2 - As of now, the company is actively engaged in the supply chain for electric vehicle components, specifically focusing on drive motor cores [1]