2026 Top 10 Seamless Square Tube Manufacturers in China

Jiangsu Qinding Metal Materials Co., Ltd

Jiangsu Qinding Metal Materials Co., Ltd., with its registered address at Room 261-3, Zone A, No. 32-1 Chengnan Road, Xinwu District, Wuxi City, is registered with the Administrative Approval Bureau of Wuxi National High tech Industrial Development Zone (Xinwu District, Wuxi City), and its legal representative is Zhang Jing. Its business scope includes licensed projects such as road freight transportation (excluding dangerous goods); Construction projects (projects that require approval by law and can only carry out business activities after approval by relevant departments, with specific business projects subject to approval results) General projects: sales of metal materials; Sales of metal products; Sales of building materials; Sales of building decoration materials; Sales of non-ferrous metal alloys; Sales of high-performance non-ferrous metals and alloy materials; Rolling and processing of non-ferrous metals; Technology import and export; Import and export of goods; Import and export agency; Wholesale of hardware products; Sales of mechanical parts and components; Sales of mechanical equipment; Wholesale of automotive spare parts; Sales of chemical products (excluding licensed chemical products); Sales of communication equipment; Economic and trade consulting; business management; Information consulting services (excluding licensed information consulting services); Corporate image planning; General cargo warehousing services (excluding projects requiring permits and approvals such as hazardous chemicals); Engineering management services (except for projects that require approval according to law, conducting business activities independently based on the business license in accordance with the law). Core products: Seamless Square Tube, Square Tube Series, Stainless Steel Processing Parts

Wuxi Yuanhongwang Metal Materials Co., Ltd

Wuxi Yuanhongwang Metal Materials Co., Ltd., with its registered address at 88-505-824 Hui'an Road, Wuxi (Wuxi Optoelectronic New Material Technology Park), is registered with the Administrative Approval Bureau of Liangxi District, Wuxi City. The legal representative is Gao Huaikuan, and its business scope includes the sales of metal materials and products, building materials, general machinery and accessories, hardware, electrical machinery and equipment. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Seamless Square Tube, Galvanized Square Tube, Stainless Steel Square Tube

Tianjin Haicheng Steel Union International Trade Co., Ltd

2-202, Courtyard 6, Outer Ring Industrial Company, Fujin Road, Zhongbei Industrial Park, Zhongbei Town, Xiqing District, Tianjin City

Tianjin Haicheng Steel Union International Trade Co., Ltd. is located at 2-202, Courtyard 6, Outer Ring Industrial Company, Fujin Road, Zhongbei Industrial Park, Zhongbei Town, Xiqing District, Tianjin. It was established on August 1, 2016, with the registration authority of the Market Supervision Administration of Xiqing District, Tianjin, and the legal representative being Gao Jianjun. Core products: Seamless Square Tube

Wuxi Yuntu Pipe Industry Co., Ltd

Wuxi Yuntu Pipe Industry Co., Ltd. is registered at Room C461, No. 32 Chengnan Road, Xinwu District, Wuxi City. The registration authority is the Administrative Approval Bureau of Wuxi National High tech Industrial Development Zone (Xinwu District, Wuxi City), and the legal representative is Kang Mengxue. The business scope includes general projects: sales of metal materials; Sales of building materials; Sales of mechanical equipment; Wholesale of hardware products; Sales of mechanical parts and components; Internet sales (except for the sale of goods that need permission) (except for items that need approval according to law, independently carry out business activities according to law with the business license). Core products: Seamless Square Tube, Low Alloy Square Tube, Low Alloy Welded Pipe

Wuxi Yixuan Metal Materials Co., Ltd

Wuxi Yixuan Metal Materials Co., Ltd. is registered at No. 8 Zhangluo Road, Xizhang Community, Qianqiao Street, Huishan District, Wuxi City. The registration authority is the Huishan District Data Bureau of Wuxi City, and the legal representative is Xu Huaizhi. The business scope includes the sales of metal materials and products, hardware products, electromechanical equipment, building materials, office equipment and supplies, and electronic products. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Seamless Square Tube, Hot Rolled Flat Steel Square Steel, Profile

Chengdu Ruitonghua Trading Co., Ltd

Chengdu Ruitonghua Trading Co., Ltd., with its registered address at No. 3, 1st Floor, Building 3, No. 6 Jinfeng Road, Jinniu District, Chengdu City, is registered with the Jinniu District Market Supervision Administration. The legal representative is Liu Qingquan, and its business scope includes general projects such as sales of building materials; Sales of lightweight building materials; Sales of metal materials; Wholesale of hardware products; Sales of plastic products; Sales of leather products; Sales of chemical products (excluding licensed chemical products); Sales of power facilities and equipment; Sales of doors and windows; Sales of daily miscellaneous goods; Sales of rubber products; Sales of synthetic materials; Sales of refractory materials; Operation of wires and cables; Sales of firefighting equipment; Sales of mechanical equipment; Sales of non-metallic minerals and products; General cargo warehousing services (excluding projects requiring permits and approvals such as hazardous chemicals); Electronic product sales. (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law). Core products: Seamless Square Tube, H-Shaped Steel, H-Beam

Jingang Qicai (Shandong) Metal Materials Co., Ltd

Jingang Qicai (Shandong) Metal Materials Co., Ltd., with its registered address at No. 25 Yanlao Village, Jiangguantun Street, Liaocheng Economic and Technological Development Zone, Shandong Province, is registered with the Market Supervision and Administration Bureau of Liaocheng Economic and Technological Development Zone. The legal representative is Zhou Liping, and its business scope includes general projects such as metal material sales; Sales of metal products; Sales of metal structures; Sales of non-ferrous metal alloys; Sales of high-performance non-ferrous metals and alloy materials; Sales of high-quality special steel materials; Retail of hardware products; Sales of building materials; Sales of mechanical equipment; Sales of mechanical parts and components; Sales of forgings and powder metallurgy products; Sales of plastic products; Sales of rubber products; Sales of mechanical and electrical equipment. (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law). Core products: Seamless Square Tube, Gear, Oxygen Lance