Sales of pumps and vacuum equipment; manufacturing of pumps and vacuum equipment; manufacturing of special equipment for oil refining and chemical production; sales of special equipment for oil refining and chemical production; electric motor manufacturing; sales of electrical accessories; manufacturing of electrical accessories; manufacturing of household appliances; sales of household appliances; research and development of household appliances; sales of household appliance spare parts; battery sales; battery manufacturing; professional design services; industrial design services; wholesale of electronic components; retail of electronic components; manufacturing of plastic products; plastic products Sales; glass fiber reinforced plastic product manufacturing; glass fiber reinforced plastic product sales; metal product sales; metal product research and development; daily necessities sales; metal daily necessities manufacturing; mold sales; mold manufacturing; nonferrous metal alloy sales; daily necessities wholesale; daily necessities sales; kitchen utensils, sanitary ware, and daily sundries wholesale; Internet sales (except for sales of goods that require a license); daily necessities manufacturing; electric bicycle sales; electric bicycle repair; moped manufacturing ; Auto parts and accessories manufacturing; Electric motor manufacturing; Moped bicycles, scooters and spare parts sales; Motorcycle spare parts manufacturing; Motorcycle and spare parts wholesale; Motorcycle and spare parts retail; Motorcycle and spare parts R&D; Bicycle manufacturing; Bicycle repair; Bicycle and spare parts retail; Bicycle and spare parts wholesale; Bicycle spare parts manufacturing; Bicycle spare parts sales; New energy vehicle electrical accessories sales; New energy prime mover equipment sales; New energy vehicles Sales of car battery replacement facilities; production of battery spare parts; sales of battery spare parts; manufacturing of maternal and infant products; sales of maternal and infant products; manufacturing of household products; wholesale of stationery products; sales of household products; manufacturing of automobile decorative products; sales of entertainment and entertainment products; sales of outdoor products; sales of automobile decorative products; sales of office supplies; production of labor protection products; wholesale of pet food and supplies; sales of personal hygiene products; retail of stationery products; and manufacturing of special equipment for daily necessities production.