The company is a Shanghai Main Board listed company with a history of development for more than 40 years. Adhering to the spirit of innovative craftsmanship, it focuses on R&D and manufacturing of high-performance prestressed materials, prestressed concrete components, automation equipment, precision metal large-scale components, engineering management informatization and monitoring systems, serving domestic and foreign rail transit, highways, railways, water conservancy, new energy, construction, etc., and also participates in projects such as precision tools and new energy power generation. The company's main business is the prestressed materials industry and the concrete products industry for rail transit, and simultaneously promotes the intelligent equipment and information technology industry. The main products produced by the company include: steel wire for prestressed concrete, steel bars, steel strands, unbonded steel strands for prestressed concrete, prestressed galvanized steel wire for bridge cables, galvanized steel wire for PCCP pipes, spiral rib steel wire and fixed size rolled steel wire for high-speed rail track panels, high-strength steel strands for nuclear power plant safety shells, epoxy coated steel strands, ultra-low temperature steel strands for liquid natural gas tanks, prestressed flexible large-span photovoltaic steel brackets and system accessories, unbonded prestressed steel strands for wind power mixers, prestressed steel bars for T-type continuous beams, etc. The company received honors such as a national enterprise technology center, a national laboratory, a national physical and chemical testing center, and two well-known trademarks, Yinlong and Yuqiao, and was rated as a national technological innovation demonstration enterprise. Yinlong Co., Ltd., Baozelong, Benxi Yinlong, and Xinjiang Yinlong are all “national high-tech enterprises”. The company's technology center has been jointly recognized as a “National Accredited Enterprise Technology Center” by the National Development and Reform Commission, the Ministry of Science and Technology, the Ministry of Finance, the General Administration of Customs, and the State Administration of Taxation. The physical and chemical testing center is an accredited laboratory by the National Accreditation Committee. During the reporting period, the company won the Tianjin May 1st Labor Award, was rated as an advanced manufacturing enterprise, and won honorary certificates of the Tianjin Top 100 Manufacturing Companies, the Beijing-Tianjin-Hebei Top 100 Manufacturing Enterprises, and the Tianjin Top 100 Strategic Emerging Industries.