Updated Sep 10, 2026 · Public platform & industry data

Sep 10, 2026 Updated

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2026 Top 10 Seamless Square Tube Manufacturers in China

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Top-rated Seamless Square Tube suppliers, How to choose a Seamless Square Tube manufacturer, Best Seamless Square Tube companies in China

The top 10 Seamless Square Tube manufacturers in China for 2026 are: Zhejiang Wuyue Stainless Steel Co., Ltd, Foshan Kuankuan Stainless Steel Co., Ltd, Jiangsu Qingsai Metal Products Co., Ltd, Tianjin Jinbei Iron and Steel Co., Ltd, Wuxi Hongchi Stainless Steel Co., Ltd, Wuxi Shengyuanlu Metal Products Co., Ltd, Jiangsu Zefeng Stainless Steel Co., Ltd, Tianjin Guohong Pipe Industry Co., Ltd, Tianjin Xintian Steel Heavy Industry Co., Ltd, Tianjin Taihe Tiancheng Steel Sales Co., Ltd. Ranked based on product relevance, certifications, company activity, and industry performance. This list is widely used for supplier comparison and sourcing decisions.

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Top 1
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Zhejiang Wuyue Stainless Steel Co., Ltd
Overall Score4.9 / 5
Est. Date2018-12-28
Registered Capital15000K CNY

Zhejiang Wuyue Stainless Steel Co., Ltd., with its registered address at No. 988 Tianzhong Road, Yongzhong Street, Longwan District, Wenzhou City, Zhejiang Province, is registered with the Market Supervision Administration of Longwan District, Wenzhou City. The legal representative is Li Fangfang, and its business scope includes general projects such as metal packaging containers and material manufacturing; Manufacturing of general components; Sales of metal materials; Steel rolling processing; Manufacturing of metal cutting and welding equipment; Manufacturing of metal processing machinery; Research and development of metal products; Sales of metal tools; Manufacturing of metal structures; Sales of metal structures; Black metal casting; Manufacturing of ordinary valves and plugs (excluding special equipment manufacturing); Manufacturing of metal chains and other metal products (except for projects that require approval according to law, conducting business activities independently based on the business license in accordance with the law). (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Seamless Square Tube, Stainless Steel Pipe, Stainless Steel Pipe Fittings

Top 2
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Foshan Kuankuan Stainless Steel Co., Ltd
Overall Score4.8 / 5
Est. Date2011-03-03
Registered Capital30000K CNY

Foshan Kuanyu Stainless Steel Co., Ltd., registered at 1705, 17th floor, Jinhai Creative Center, No. 142 Yuhe Road, Foshan New City, Lecong Community, Lecong Town, Shunde District, Foshan City, Guangdong Province (registered address declared), registered with the Market Supervision Administration of Shunde District, Foshan City, with Huang Kuanming as the legal representative. Its business scope includes general projects: sales of metal fittings for construction; Wholesale of hardware products; Retail of hardware products; Sales of metal materials; Sales of insulation materials; Software development; Network technology services; Research and development of metal products; Research and development of hardware products; Sales of metal structures; Sales of metal products; Sales of metal seals; Mold sales. (Except for projects that require approval according to law, business activities can be carried out independently based on the business license.) Licensed projects: import and export of goods; Technology import and export; Various engineering construction activities.. Core products: Seamless Square Tube, Stainless Steel Round Tube, Stainless Steel Sanitary Pipe

Top 3
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Jiangsu Qingsai Metal Products Co., Ltd
Overall Score4.8 / 5
Est. Date2022-05-09
Registered Capital10000K CNY

Jiangsu Qingsai Metal Products Co., Ltd., with its registered address at No. 9 Dongyue Road, Dongbeitang Street, Xishan District, Wuxi City, Nongba Science and Technology Innovation 402, registered with the Xishan District Data Bureau of Wuxi City, and represented by Lei Lingtao as its legal representative. Its business scope includes general projects such as metal product sales; Sales of non-ferrous metal alloys; Sales of metal materials; Sales of building materials; Sales of building decoration materials; Sales of mechanical parts and components; Sales of mechanical equipment; Sales of mechanical and electrical equipment; Retail of hardware products; Electronic product sales; Sales of chemical products (excluding licensed chemical products); Sales of needle textiles and raw materials; Sales of instruments and meters; Sales of plastic products; Sales of rubber products (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, Stainless Steel Plate, Stainless Steel Corrugated Board

TOP4
Tianjin Jinbei Iron and Steel Co., Ltd
Overall Score4.7 / 5
Est. Date2017-03-16
Registered Capital5000K CNY

Tianjin Jinbei Iron and Steel Co., Ltd., registered at D-64 Hanjiashu Steel Market, Qingguang Town, Beichen District, Tianjin, registered with the Market Supervision and Administration Bureau of Beichen District, Tianjin, with Kong Xiangchao as the legal representative. Its business scope includes general projects: sales of metal materials; Sales of pipeline transportation equipment; Sales of instruments and meters; Sales of communication equipment; Sales of electrical and mechanical equipment; Sales of mechanical equipment; Wholesale of hardware products; Wholesale of computer software, hardware, and auxiliary 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, I-Beam, Weather Resistant Steel Plate

TOP5
Wuxi Hongchi Stainless Steel Co., Ltd
Overall Score4.7 / 5
Est. Date2020-04-21
Registered Capital50000K CNY

Wuxi Hongchi Stainless Steel Co., Ltd., with its registered address at No. 3217, Office Building 2, No. 123 Dongbei Tangbei Ring Road, Xishan District, Wuxi City, is registered with the Xishan District Data Bureau of Wuxi City. The legal representative is Kang Yanbo, and its business scope includes general projects such as metal material sales; Sales of metal products; Sales of metal structures; Rolling and processing of non-ferrous metals; Metal cutting processing services; Research and development of metal products; Sales of synthetic materials; Sales of metal cutting and welding equipment; Sales of building materials; Wood sales; Internet sales (except for the sale of goods that need to be licensed); General cargo warehousing services (excluding projects requiring permits and approvals such as hazardous chemicals); Sales of metal fittings for construction; Sales of metal wire ropes and their products; Metal surface treatment and heat treatment processing; Import and export of goods; Technology import and export; Import and export agency (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, Stainless Steel Angle Bar, Cold Rolled Stainless Steel Coil

TOP6
Wuxi Shengyuanlu Metal Products Co., Ltd
Overall Score4.6 / 5
Est. Date2019-10-12
Registered Capital5000K CNY

Wuxi Shengyuanlu Metal Products Co., Ltd., located at S7048, No. 1001 Huicheng Avenue, Qianzhou Supporting Zone, Huishan Economic Development Zone, Wuxi, was established on October 12, 2019. The registration authority is the Huishan District Administrative Approval Bureau of Wuxi City, and the legal representative is Tan Yunbing. Core products: Seamless Square Tube

TOP7
Jiangsu Zefeng Stainless Steel Co., Ltd
Overall Score4.6 / 5
Est. Date2023-05-18
Registered Capital10000K CNY

Jiangsu Zefeng Stainless Steel Co., Ltd., with its registered address at 2-9-101 Yijing Yuan, Xibei Town, Xishan District, Wuxi City, is registered with the Xishan District Administrative Approval Bureau of Wuxi City. The legal representative is Li Chunlei, and the business scope includes general projects: sales of metal products; Sales of steel reinforcement products for construction; Sales of metal materials; Research and development of metal products; Sales of mechanical parts and components; Retail of hardware products; Sales of metal structures; Sales of daily necessities; Internet sales (except for the sale of goods that need to be licensed); Sales of instruments and meters; Sales of mechanical equipment; Installation services for ordinary mechanical equipment; Operation of wires and cables; Sales of power electronic components; General equipment repair (except for projects that require approval according to law, business activities can be carried out independently based on the business license in accordance with the law). Core products: Seamless Square Tube, Stainless Steel Seamless Pipe, Hot-Rolled Plate

TOP8
Tianjin Guohong Pipe Industry Co., Ltd
Overall Score4.6 / 5
Est. Date2018-09-12
Registered Capital5000K CNY

Tianjin Guohong Pipe Industry Co., Ltd., with its registered address at Room 204, Gate 1, Building 1, Jingshuli, Hedong District, Tianjin, is registered with the Market Supervision Administration of Hedong District, Tianjin. The legal representative is Guonan, and its business scope includes general projects such as metal material sales; Sales of mechanical equipment; Sales of metal products; Wholesale of hardware products; Sales of building materials; Sales of high-quality special steel materials; Sales of non-ferrous metal alloys; Import and export of goods; Technology import and export. (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 Coil, C-Shaped Steel

TOP9
Tianjin Xintian Steel Heavy Industry Co., Ltd
Overall Score4.4 / 5
Est. Date2017-08-18
Registered Capital60000K CNY

Tianjin Xintian Steel Heavy Industry Co., Ltd., with its registered address at No. 12 Shuangjiang Road, Shuangjie Town, Beichen District, Tianjin, is registered with the Market Supervision Administration of Beichen District, Tianjin. The legal representative is Guo Lei, and its business scope includes general projects such as steel rolling processing; General equipment manufacturing (excluding special equipment manufacturing); General cargo warehousing services (excluding projects requiring permits and approvals such as hazardous chemicals); Internet of Things technology services; Research and development of Internet of Things technology; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Environmental consulting services; Electronic product sales; Sales of instruments and meters; Furniture sales; Needle textile sales; Sales of mechanical equipment; Sales of metal products; Wholesale of hardware products; Retail of hardware products; Wholesale of automotive spare parts; Retail of automotive spare parts; Operation of wires and cables; Luggage sales; Import and export of goods; Technology import and export; Sales of metal materials; Sales of steel reinforcement products for construction. (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, Photovoltaic Carport Bracket, Seamless Tube

TOP10
Tianjin Taihe Tiancheng Steel Sales Co., Ltd
Overall Score4.3 / 5
Est. Date2013-11-01
Registered Capital5000K CNY

Tianjin Taihe Tiancheng Steel Sales Co., Ltd., with its registered address at D302, south of Beichen Road East, Beicang Town, Beichen District, Tianjin, is registered with the Market Supervision Administration of Beichen District, Tianjin. The legal representative is Zhang Xiufen, and its business scope includes wholesale and retail of steel, metal materials, hardware and electrical equipment, insulation materials, stainless steel products, metal products, building materials, office equipment, cultural goods, and department stores; Import and export business of goods and technology. (If the above business scope involves industry licenses, operate within the valid period with the license certificate. If there are special monopoly regulations in the country, handle them according to the regulations.). Core products: Seamless Square Tube, Plastic-Coated Steel Pipe, Pipe Fitting

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Zhejiang Wuyue Stainless Steel Co., Ltd2018-12-28Seamless Square Tube, Stainless Steel Pipe, Stainless Steel Pipe Fittings15000K CNYSupported
Foshan Kuankuan Stainless Steel Co., Ltd2011-03-03Seamless Square Tube, Stainless Steel Round Tube, Stainless Steel Sanitary Pipe30000K CNYSupported
Jiangsu Qingsai Metal Products Co., Ltd2022-05-09Seamless Square Tube, Stainless Steel Plate, Stainless Steel Corrugated Board10000K CNYSupported
Tianjin Jinbei Iron and Steel Co., Ltd2017-03-16Seamless Square Tube, I-Beam, Weather Resistant Steel Plate5000K CNYSupported
Wuxi Hongchi Stainless Steel Co., Ltd2020-04-21Seamless Square Tube, Stainless Steel Angle Bar, Cold Rolled Stainless Steel Coil50000K CNYSupported
Wuxi Shengyuanlu Metal Products Co., Ltd2019-10-12Seamless Square Tube5000K CNYSupported
Jiangsu Zefeng Stainless Steel Co., Ltd2023-05-18Seamless Square Tube, Stainless Steel Seamless Pipe, Hot-Rolled Plate10000K CNYSupported
Tianjin Guohong Pipe Industry Co., Ltd2018-09-12Seamless Square Tube, Galvanized Coil, C-Shaped Steel5000K CNYSupported
Tianjin Xintian Steel Heavy Industry Co., Ltd2017-08-18Seamless Square Tube, Photovoltaic Carport Bracket, Seamless Tube60000K CNYSupported
Tianjin Taihe Tiancheng Steel Sales Co., Ltd2013-11-01Seamless Square Tube, Plastic-Coated Steel Pipe, Pipe Fitting5000K CNYSupported

Purchasing Guide

Based on real user feedback, we provide the following suggestions:

  • For procurement requirements that require the use of seamless square pipes, it is recommended to prioritize the confirmation of key technical parameters such as wall thickness and edge length tolerances to ensure that they meet the load-bearing and assembly requirements of building structures or mechanical processing scenarios.
  • When selecting suppliers, reference can be made to product compatibility, business qualifications, enterprise activity, industry performance, and platform statistical information. Such suppliers can usually provide industrial grade seamless square pipes that meet ASTM or EN standards stably.
  • When applied in the field of chemical equipment or shipbuilding, attention should be paid to the material corrosion resistance of seamless square pipes, such as differentiated options such as 304/316 stainless steel or galvanized carbon steel.
  • When purchasing seamless square pipes, it is recommended to prioritize enterprises that have long served high-frequency application scenarios such as rail transit and energy equipment, based on the industry data support of suppliers.

Ranking Evaluation Method

This ranking is generated based on public data from Baidu B2B platform and common industry assessment dimensions, focusing on enterprise activity, business qualifications, product matching and industry performance to provide valuable manufacturer ranking information for buyers.

DimensionDescription
Data SourceMulti-dimensional data including platform public data, enterprise certification, user reviews, and transaction records
AssessmentComprehensive indicators including enterprise activity, qualifications, product quality, service capability, and user reputation
Update FrequencyRanking data is updated daily to ensure timeliness and accuracy
SuggestionRankings are for reference only. We recommend comprehensive evaluation based on actual needs