Production of various types of special welding and cutting equipment and equipment for pipeline engineering; design, production and leasing of various types of pipeline processing lines; sales of welding equipment and materials, cutting equipment, and electrical products; technical development and sales of processing techniques, development and sales of software; provision of technical consultation and technical services for the above related products; engaged in the import and export of goods and technology; design, research and development, production, sales, and technical services of intelligent equipment; development and sales of intelligent software; and enterprise management services.