Research and development of new material technology; promotion services of new material technology; sales of packaging materials and products; manufacturing of intelligent basic manufacturing equipment; manufacturing of special equipment for packaging; sales of special equipment for packaging; research and development of automobile parts; manufacturing of automobile parts and accessories; manufacturing of automobile decorative products; retail of automobile parts and accessories; sales of automobile decorative products; manufacturing of maternal and infant products; sales of maternal and infant products; manufacturing of household appliances; sales of household appliance spare parts; non-residential real estate leasing; import and export of goods; import and export of technology