Special equipment manufacturing (excluding licensed professional equipment manufacturing); Environmental protection special equipment manufacturing; Dust removal technology equipment manufacturing; Environmental protection special equipment sales; Material handling equipment manufacturing; Material handling equipment sales; Agricultural, forestry, animal husbandry, sideline and fishery professional machinery manufacturing; Agricultural science research and experimental development; Technical services, technology development, technology consulting, technology exchange, technology transfer, technology promotion; Mechanical and electrical equipment manufacturing; Mechanical and electrical equipment sales; Agricultural, forestry, animal husbandry, sideline and fishery professional machinery sales; Road freight transport for general cargo vehicles with total mass of 4.5 tons and below (excluding online freight and dangerous goods); Primary processing of edible agricultural products; Primary processing of non-edible agricultural products; Edible agricultural product retail; Mechanical equipment research and development; Software development; Intelligent agricultural management; Mechanical equipment sales; Agricultural machinery services; Forestry machinery services; Fishery machinery services; General mechanical equipment installation services.