Shandong Changshengda steel Co.,Ltd is a foreign trade subsidiary of Shandong Liaocheng Jinzheng Steel Pipe Co.,Ltd. is located in the largest seamless steel pipe base in China, with standardized production workshops. The company was founded in 2011 and is a "National 863 Plan Project Implementation Unit". The company currently has 800 employees, including 120 intermediate and senior technical personnel. The factory covers an area of 200000 square meters. The enterprise has advanced smelting, centrifugal casting, extrusion, and rolling production lines, as well as oxygen production stations, natural gas valve stations, 110KV substations, water treatment centers, and high standard chemical analysis rooms and physics laboratories that are matched with the main equipment. It is equipped with advanced physical and chemical testing equipment, and the latest introduction of large annealing furnaces and the construction of large acid washing plants, We also have an independent steel pipe testing laboratory and large-scale automatic ultrasonic and eddy current testing equipment, and are building a professional production unit for bearing steel materials.