Manufacturing of electronic components and electromechanical component equipment; sales of magnetic materials; manufacturing of special electronic equipment; sales of special electronic equipment; manufacturing of power electronic components; wholesale of electronic components; sales of electrical accessories; manufacturing of mechanical and electrical equipment; sales of mechanical and electrical equipment; manufacturing of hardware products; wholesale of hardware products; retail of hardware products; mechanical parts and parts processing; sales of mechanical parts and components; manufacturing of plastic products; sales of plastic products; wholesale of auto parts and accessories; manufacturing of motorcycle parts; manufacturing of paper products; sales of paper products; conference and exhibition services; advertising production; advertising design, agency