Established in 1894, China Railway Shanhaiguan Bridge Group Co., Ltd (CRSBG) (the former Shanhaiguan Bridge Workshop) with its long history is the most magnificent and the most powerful manufacturer of bridge steel structure, railway turnouts, heavy machinery in China. His mother company, China Railway Group Co., Ltd, is one of the Global 500. CRSBG has its headquarter at Shanhaiguan District, Qinhuangdao City of Hebei Province, covering an area of 1, 237, 800 square meters and its branches in Beijing, Shanghai, Guangzhou and Jiangsu. The main products of CRSBG cover steel structure of railway bridges and highway bridges, steel structure of power plants and buildings; Turnouts of railway, subway and city tramway, main components such as high manganese steel frog, alloy steel frog of rail track; Heavy machinery for lifting, installation, loading and unloading; High strengthened bolts and fasteners; Many metal castings. With the good quality and renowned reputation, CRSBG has acquired ISO9001 quality system certificate, ISO 14001 environment system certificate, occupation healthy safety system certificate, UKAS certificate, AISC certificate, AWS certificate, Germany welding certificate and CWB certificate. In addition to all these international certificates, CRSBG has also got many national prizes such as client-satisfactory enterprise, advanced quality management enterprise. Its steel beam and steel structure and turnouts are graded as national client-satisfactory enterprise, advanced quality management enterprise. Its steel beam and steel structure and turnouts are graded as national client-satisfactory products. Equipped with great capability of technical research and development, CRSBG has been estimated as technical center of enterprise rank, enterprise with advanced technique, first-class contractor of steel structure engineering and specialist of steel structure manufacturing. Due to all these advantages and efforts, CRSBG acquired its own import and export power, distributing its products to more than 10 countries and areas such as America, Canada, Germany, Great Britain, Japan, New Zealand, Korea, and Hong Kong.