Off-highway recreational vehicle and spare parts manufacturing; Off-highway recreational vehicle and spare parts sales; Motor manufacturing; Material handling equipment manufacturing; Intelligent material handling equipment sales; Rail transit engineering machinery and parts sales; Agricultural machinery manufacturing; Agricultural machinery sales; Sales of agricultural, forestry, animal husbandry, auxiliary, and fishery professional machinery; Construction engineering machinery manufacturing; Industrial design services; Motor and control system R&D; Intelligent robot R&D; Agricultural machinery services; Agricultural production hosting services; Agricultural professional and auxiliary activities Vehicles; manufacturing, processing, and sales of automobiles, motorcycle accessories, electric vehicles and parts, moped bicycles, robots, Class I medical equipment, wheelchairs for the disabled (only for licensing and approval by relevant departments, and those who change registration without permission and approval are not allowed to engage in business activities), gears, transmission and drive parts (the above scope does not include automobiles and motorcycle engines); sales of Wujinjiaodian, instruments and meters, steel, building materials and decorative materials (excluding hazardous chemicals); import and export of goods; general freight. [Projects that require approval according to law can only carry out business activities after approval from relevant departments].