Design and production of civil aircraft parts; general items of power generation business, power transmission business, power supply (distribution) business: automobile parts and accessories manufacturing; mechanical parts and parts processing; non-ferrous metal casting; mold manufacturing; agriculture, forestry, animal husbandry and fishery machinery parts manufacturing; ordinary valves and cocks manufacturing (excluding special equipment manufacturing); manufacturing of building decoration, plumbing pipe parts and other construction metal products; import and export of goods; import and export of technology; import and export agency; technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; non-residential real estate leasing; machinery and equipment leasing