It is divided into the manufacturing of flame heads, automobile stamping parts, automobile and motorcycle igniters, high-voltage damping wire assemblies, and plastic products; the sales of automobile parts, motorcycle parts, wires, rubber and products, and metal materials; self-operated and agent import and export business of various commodities and technologies (except for commodities and technologies that are restricted by the state or prohibited from import and export). General items: manufacturing of industrial textile products; sales of industrial textile products; production of labor protection products; sales of labor protection products; production of daily masks (non-medical); sales of daily masks (non-medical); wholesale of medical masks; wholesale of protective equipment for medical staff; sales of first-class medical devices; production of first-class medical devices; sales of second-class medical devices