Luoyang Tengyu Machinery Co., LTD., formerly a subsidiary of the Tunnel Engineering Bureau of the Ministry of Railways, was established in April 2006. It is a professional company integrating the development, design, manufacture and repair of tunnels, Bridges and hydraulic machinery. The company has passed ISO9001 quality management system certification, environmental management system and occupational health and safety management system certification.

The company has more than 15 senior technical personnel, more than 150 senior technicians.

The company has a modern enterprise management and after-sales service system and a complete set of mechanical processing equipment, with a complete bridge and tunnel construction machinery and special equipment development, manufacturing capabilities. Has launched the steel formwork tunnel lining trolley series, trestle series, bridge steel formwork series, hydraulic machinery and components series products.