Shandong Guanglei Steel Structure Engineering Co., Ltd. was founded in 2002, located at Yanzhou Economic Development Zone in Shandong.  After 19 years of rapid development, Guanglei has possessed the strength to produce steel-structure plants, high-rise residential buildings, bridges, grids, power plants and other large industrial and civil high-rise large-span steel structures. The company has become a large-scale modern enterprise integrating design, production and installation. As a specialized steel structure contractor with the national Grade-A qualification, a steel structure manufacturer with national Grade-A qualification, and a national key steel production base, the company has a number of advanced production lines for producing H-beam, high-frequency welded profile steel, pipe trusses, retaining plates, and so on, being equipped with complete production and testing equipment, with an annual output of 300,000 tons of steel structures.