和而泰：公司主营业务为智能控制器产品的研发、生产和销售

Core Viewpoint - Heertai focuses on the research, production, and sales of intelligent controller products, covering various sectors including home appliances, power tools, industrial automation, and automotive electronics [2] Group 1: Business Overview - The company's main business involves intelligent controllers for home appliances, electric tools, industrial automation, and automotive electronics [2] - Heertai does not engage in server temperature control and power supply sectors, but possesses relevant technology reserves in temperature control and electronic control for automotive electronics [2]