Manufacturing of daily-use sundries; sales of daily-use sundries; manufacturing of metal tools; sales of metal tools; manufacturing of molds; sales of molds; manufacturing of plastic products; sales of plastic products; technical services, technical development, technical consulting, technical exchange, technology transfer, and technology promotion; industrial design services; road cargo transport of general freight vehicles with a total mass of 4.5 tons or less (excluding online freight and dangerous goods); import and export of goods; import and export of technology.