Hospital is the science and technology enterprise, mainly engaged in research and design of construction machinery, production and sales and construction. Rail and road framing machinery, and a variety of bridge span gantry crane, pile and tunnel construction machinery and other development, development, production and services; various steel manufacturing, installation and other services; Construction Machinery construction business; foreign construction machinery sales agents; operation of the enterprise self-produced mechanical and electrical products, equipment and related technology business. Main Products: bridge machine, track-laying machine, bridge equipment; powder pile driver, static pressure, rotary drilling pile driver, etc.; ultra-high frequency hydraulic vibrating hammer; im.. (more>>)