四川长虹：公司主营智慧家居、通用设备制造、ICT综合服务以及特种业务等其他业务

Core Viewpoint - Sichuan Changhong, a subsidiary of Sichuan Changhong Electronic Holding Group, is actively involved in various sectors including smart home, general equipment manufacturing, ICT comprehensive services, and special businesses, with a focus on specialized power supply for aviation and market opportunities in rail exchange repair [2] Group 1 - Sichuan Changhong's subsidiaries include Sichuan Huafeng Technology Co., Ltd. and Yibin Hongxing Electronics Co., Ltd. [2] - The company specializes in smart home solutions, general equipment manufacturing, ICT services, and other special business areas [2] - In the specialized power supply sector, Changhong Power is dedicated to aviation-specific research and exploring the existing market for rail exchange repair [2]