Zhangjiagang Shasteel & Kingland Pipeline Co., Ltd. is a professional manufacturer of longitudinal submerged arc welded pipe. It is jointly acquired and expanded by Zhejiang Kingland Pipeline and Technologies Co., Ltd., a listed company, and Jiangsu Shagang Group, a Fortune Global 500 company. The company is located in Jiulong Logistics Park of Shagang Group in Zhangjiagang, Jiangsu Province. It is one of the large enterprises of welded pipe in China with the integrated production advantages of both steel plates and steel pipes (carbon steel, carbon steel -stainless steel cladding).

　　The company has adopted advanced PPF forward extrusion molding technology (JCOE) from Germany to construct a large-diameter double-sided longitudinal submerged arc welded pipe production line with a diameter range of φ406mm to φ1626mm and an annual designed production capacity of 300,000 tons. At the same time, it has built a φ1500mm to φ3800mm 3RB double-weld seam bending production line, with an annual designed production capacity of 20,000 tons. It also has supporting facilities including a 3PP/3PE/FBE external coating production line with an annual designed production capacity of 3 million square meters, and an internal coating production line with an annual designed production capacity of 2 million square meters.

　　The company's products are mainly used for the transportation of media such as oil, natural gas, chemicals, coal slurry, mineral slurry, steam, and water onshore and offshore, and for offshore platforms, power plants, urban construction, bridge engineering, and steel structures. The company has successfully completed product supply for large-scale oil and natural gas transportation projects both domestically and internationally, such as the Shenmu-Weinan coal slurry pipeline, the Shanxi-Jingzhu Pipeline Line 4, the Jiaozhou Bay seabed pipeline project, the CNOOC Fujian Hainan natural gas pipeline project, and the Venezuelan national oil project. In the chemical industry, the company has completed petrochemical projects of Hengli Petrochemical, Zhejiang Petrochemical, Shandong Yulong Petrochemical, and Shenghong Petrochemical, and has become a leading steel pipe supplier for domestic petrochemical projects with a leading market share. At the same time, the company has achieved good performance and reputation in fields such as national grid tower pipes, coal chemical pipes, and LNG pipes.

　　With its excellent comprehensive strength and innovative achievements, the company has won a series of notable honorary titles, including High-tech Enterprise, Jiangsu Province Specialized, Fine, Unique and New Enterprise, Jiangsu Province Postgraduate Workstation, Jiangsu Province Intelligent Manufacturing Workshop, Grade II Enterprise for Safe Production Standardization, Suzhou Engineering Technology Research Center and Suzhou Innovative Enterprise. In June 2024, the company's laboratory was accredited by the China National Accreditation Service for Conformity Assessment (CNAS), upgrading to a national-level laboratory.