Electronic component manufacturing; electronic component wholesale; motor and control system research and development; fan and blower manufacturing; fan and blower sales; metal product research and development; hardware product research and development; hardware product manufacturing; electronic product sales; computer software and hardware and peripheral equipment manufacturing; technical services, technical development, technical consulting, technical exchange, technology transfer, and technology promotion; road cargo transportation for vehicles with a total mass of 4.5 tons or less (excluding online freight and dangerous goods); goods import and export.