General items: paper products sales; Packaging materials and products sales; Bamboo products sales; New material technology research and development; General merchandise sales; Sales of household appliances; Food sales (pre-packaged food only); Sales of new ceramic materials; Metal material sales; Rubber products sales; Building materials sales; Sales of plastic products; Sales of surface functional materials; Sales of new membrane materials; Sales of high-performance sealing materials; Metamaterial sales; Sales of metal products; Office equipment sales; Fire equipment sales; Health food (pre-packaged) sales: sales agent; Marketing of sanitary and single-use medical supplies; Household goods sales: casting molding materials sales; Sales of photovoltaic equipment and components; Furniture parts sales; Watch sales; Sales of maternal and infant products; Daily necessities sales; Sales of personal hygiene products; Needle textile sales; Luggage sales; Outdoor goods sales; Furniture sales; Lighting sales; Sales of thermal insulation materials; Valve and cock sales; Pump and vacuum equipment sales; Mold sales; Import and export of goods; Technology import and export; Import and export agent; Food import and export; Internet sales (except sales of commodities that need to be licensed).(Except for items that need to be approved according to law, independently carry out business activities according to law with business licenses)