Manufacturing of electronic (gas) physical equipment and other electronic equipment; sales of electronic products; manufacturing of auto parts and accessories; wholesale of auto parts; retail of auto parts; manufacturing of general parts; mechanical parts and parts processing; sales of mechanical parts and parts; manufacturing of motorcycle parts; wholesale of motorcycles and parts; retail of motorcycles and parts; manufacturing of hardware products; wholesale of hardware products; retail of hardware products; manufacturing of fasteners; sales of fasteners; manufacturing of power transmission, distribution and control equipment; import and export of goods; import and export of technology.