R&D, manufacturing, sales and technical consultation of general machinery, agricultural machinery, environmental protection machinery, municipal garden machinery; sales of mechanical and electrical products and equipment, hardware products, transportation equipment, auto parts, motorcycle parts, metal materials, instruments and meters; self-operated and agent import and export business of various commodities and technologies, except for commodities and technologies that are restricted by the state or prohibited from import and export. General projects: manufacturing of material handling equipment; sales of material handling equipment; maintenance of electronic and mechanical equipment (excluding special equipment); repair of general equipment; repair of special equipment; installation and maintenance of professional machinery for agriculture, forestry, animal husbandry, and sideline fisheries; research and development of mechanical equipment; sales of mechanical equipment; technical services, technology development, technical consultation, technology exchange, technology transfer, and technology promotion