2026 Top 10 Seamless Steel Pipe Q355d Manufacturers in China

Tianjin Zhongmen Iron and Steel Co., Ltd

Tianjin Zhongmen Iron and Steel Co., Ltd., with its registered address at No. 1, Shuangchen Middle Road, Beichen Economic and Technological Development Zone, Beichen District, Tianjin (within the premises of Tianjin Hongyao Investment Co., Ltd.), registered with the Market Supervision Administration of Beichen District, Tianjin, and represented by Jia Junyong as its legal representative. Its business scope includes general projects such as metal material sales; Retail of hardware products; Sales of building materials; Sales of chemical products (excluding licensed chemical products); Sales of electronic components and electromechanical equipment; Sales of office supplies. (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 Steel Pipe Q355d, Galvanized Pipe, Seamless Tube

Tianjin Kaishuo Weiye Steel Trading Co., Ltd

Tianjin Kaishuo Weiye Iron and Steel Trading Co., Ltd., with its registered address at 12-3-201 Qingdayuan, Shuangjie Town, Beichen District, Tianjin, is registered with the Market Supervision Administration of Beichen District, Tianjin. The legal representative is Zhang Changfeng, and the business scope includes general projects: sales of metal materials; Sales of building materials; Sales of mechanical equipment; Wholesale of hardware products; Sales of rubber products; Sales of electrical instruments and meters; Sales of seals; Sales of new energy original equipment; Sales of metal structures; Sales of metal products; Sales of metal chains and other metal products; Sales of non-ferrous metal alloys; Operation of wires and cables; Sales of electrical equipment; Sales of mechanical and electrical equipment; Import and export of goods; Technology import and export. (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 Steel Pipe Q355d, H-Shaped Steel I-Beam, Stainless Steel Pipe

Tianjin Huaze Pengcheng Steel Trading Co., Ltd

Tianjin Huazhepengcheng Iron and Steel Trading Co., Ltd. is located at Room 228, No. 17, Shuangchen Middle Road, Beichen Economic and Technological Development Zone, Tianjin, China (within Hongyao Industrial Park). It was established on February 24, 2026, with the registration authority being the Market Supervision Administration of Beichen District, Tianjin, and the legal representative being Wang Pengbo. Core products: Seamless Steel Pipe Q355d, Precision Tube, Seamless Tube

Tianjin Jinxin Steel Union Steel Pipe Trading Co., Ltd

Tianjin Jinxin Steel Union Steel Pipe Trading Co., Ltd., with its registered address at Room 101, Door 2, Building 48, Green Island Home, Tianmu Town, Beichen District, Tianjin, is registered with the Market Supervision and Administration Bureau of Beichen District, Tianjin. The legal representative is Zhu Laizhong, and its business scope includes wholesale and retail of metal materials, hardware and electrical equipment, mechanical equipment, electronic products, plumbing parts, and mineral products; Engage in import and export business permitted by national laws and regulations. (If there are special regulations for monopoly in the country, they shall be handled in accordance with the special regulations for monopoly.). Core products: Seamless Steel Pipe Q355d, Galvanized Square Tube, Square Tube

Tianjin Chenhe Steel Co., Ltd

Tianjin Chenhe Iron and Steel Co., Ltd., with its registered address at No. 32-33, Zone A, Hanjiashu Steel Market, Qingguang Town, Beichen District, Tianjin, registered with the Market Supervision and Administration Bureau of Beichen District, Tianjin, and represented by Li Zhongqiu as its legal representative. Its business scope includes general projects such as metal material sales; Sales of metal products; Sales of metal structures; Sales of metal fittings for construction; Sales of high-performance non-ferrous metals and alloy materials; Sales of non-ferrous metal alloys; Sales of non-metallic minerals and products; Sales of new metal functional materials; Sales of metal chains and other metal products; Sales of metal wire ropes and their products; Operation of wires and cables; Sales of power electronic components; Fiber optic cable sales; Sales of coatings (excluding hazardous chemicals); Sales of communication equipment; Sales of mechanical equipment; Sales of office equipment; Wholesale of hardware products; Retail of hardware products; Sales of architectural ceramic products; Wood sales; Retail of automotive spare parts; Wholesale of automotive spare parts; Wholesale of clothing and apparel; Sales of chemical products (excluding licensed chemical products); Import and export of goods; Technology import and export. (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 Steel Pipe Q355d, Low Temperature Resistant Round Steel, Low Temperature Resistant Steel Plate

Shandong Yousheng Pipeline Technology Co., Ltd

Shandong Yousheng Pipeline Technology Co., Ltd., with its registered address at 1315, 13th floor, Building 12, Xingguang International Financial Center, Dongchang East Road, Dongcheng Street, Liaocheng Economic and Technological Development Zone, Shandong Province, China. The registration authority is the Market Supervision Administration of Liaocheng Economic and Technological Development Zone, and the legal representative is Zhang Jianzhong. Its business scope includes general projects such as research and development of high-efficiency energy-saving technologies in the power industry; Sales of metal materials; Sales of metal products; Sales of metal structures; Sales of non-ferrous metal alloys; Sales of power facilities and equipment; Sales of high-performance non-ferrous metals and alloy materials; Sales of high-quality special steel materials; Sales of mechanical equipment; Sales of mechanical parts and components; Retail of hardware products; Sales of building materials; Sales of forgings and powder metallurgy products; Sales of signs for transportation and public management; Import and export of goods; Technology import and export. (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 Steel Pipe Q355d, Hot Rolled Seamless Steel Pipe, Seamless Steel Pipe

Shandong Oujinsen Energy Technology Co., Ltd

2nd Floor, Building 9, No. 8 Xingguang International Financial Center, Dongcheng Street, Liaocheng Economic and Technological Development Zone, Shandong Province 0214-2 (Multiple photos at one location)

Shandong Oujinsen Energy Technology Co., Ltd. is located on the 2nd floor of Building 9, No. 8 Xingguang International Financial Center, Dongcheng Street, Liaocheng Economic and Technological Development Zone, Shandong Province, China. It was established on March 30, 2020, with the registration authority being the Market Supervision Administration of Liaocheng Economic and Technological Development Zone and the legal representative being Wang Chunping. Core products: Seamless Steel Pipe Q355d, Carbon Steel Welded Pipe - Square Tube, Carbon Steel Seamless Square Tube