四川长虹：公司主营以电视、冰箱（柜）等为代表的智慧家居业务

Group 1 - The company, Sichuan Changhong, primarily focuses on smart home business represented by products such as televisions, refrigerators, air conditioners, and washing machines [2] - The company also engages in general equipment manufacturing, highlighted by closed piston compressors [2] - Additionally, the company provides ICT comprehensive services represented by ICT product distribution and professional ICT solutions [2] Group 2 - The company is involved in electronic manufacturing services (EMS) as part of its intermediate products business [2] - Other business segments include specialized operations [2]