Updated Aug 19, 2026 · Public platform & industry data

Aug 19, 2026 Updated

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2026 Top 10 Rectangular Duct Manufacturers in China

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Top-rated Rectangular Duct suppliers, How to choose a Rectangular Duct manufacturer, Best Rectangular Duct companies in China

The top 10 Rectangular Duct manufacturers in China for 2026 are: Zhejiang Wuyue Stainless Steel Co., Ltd, Hebei Chuangxing Fiberglass Co., Ltd, Hebei Chenhao Environmental Protection Equipment Co., Ltd, Hebei Minxin Composite Materials Products Co., Ltd, Shanghai Guanying Vibration Reduction Equipment Co., Ltd, Jiashi (Taizhou) Environmental Protection Technology Co., Ltd, Hebei Leite Pipeline Equipment Manufacturing Co., Ltd, Wenzhou Huadun Steel Industry Co., Ltd, Hebei Hechang Environmental Protection Equipment Co., Ltd, Jiangsu Qinding Metal Materials 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: Rectangular Duct, Stainless Steel Pipe, Stainless Steel Pipe Fittings

Top 2
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Hebei Chuangxing Fiberglass Co., Ltd
Overall Score4.8 / 5
Est. Date2019-08-16
Registered Capital3000K CNY

Hebei Chuangxing Fiberglass Co., Ltd. is registered at Fuqiang North Road, Zaoqiang County, Hengshui City, Hebei Province. The registration authority is the Market Supervision Administration of Zaoqiang County, Hengshui City, and the legal representative is Wang Linlin. Its business scope includes the manufacturing of fiberglass and fiberglass reinforced plastic products. Processing, manufacturing, sales, installation, and maintenance; Fiberglass products, environmental protection equipment, design and construction of environmental protection equipment, as well as supporting plastic products, rubber products, carbon fiber products, stainless steel products, metal products, wastewater and solid waste treatment equipment, dust removal equipment, deodorization equipment, fiberglass pipelines, fiberglass desulfurization and purification towers, spray towers, fiberglass containers, septic tanks, oil separators, fire water tanks, water tanks, cooling towers, molded products, extruded products Construction of defogger, integrated sewage treatment equipment, integrated pump station, water treatment equipment, mechanical supporting equipment, electromechanical supporting equipment, central air conditioning end products, and anti-corrosion, waterproof, and insulation materials. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Rectangular Duct, Fiberglass Purification Tower, Frp Fan

Top 3
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Hebei Chenhao Environmental Protection Equipment Co., Ltd
Overall Score4.8 / 5
Est. Date2018-04-10
Registered Capital5000K CNY

Hebei Chenhao Environmental Protection Equipment Co., Ltd., with its registered address at No. 1199 Shengli North Road, Zaoqiang County, Hengshui City, Hebei Province, is registered with the Market Supervision and Administration Bureau of Zaoqiang County, Hengshui City. The legal representative is He Quanhai, and the business scope includes general projects: manufacturing of environmental protection special equipment; Sales of specialized equipment for environmental protection; Manufacturing of glass fiber reinforced plastic products; Sales of glass fiber reinforced plastic products; Manufacturing of plastic products; Sales of plastic products; General equipment repair; Specialized equipment manufacturing (excluding licensed specialized equipment manufacturing); Installation services for ordinary mechanical equipment; Manufacturing of metal structures; Sales of metal structures; Rubber product manufacturing; Sales of rubber products; Sales of metal products. (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: Rectangular Duct, Centrifugal Fan, Pp Air Duct

TOP4
Hebei Minxin Composite Materials Products Co., Ltd
Overall Score4.7 / 5
Est. Date2022-10-12
Registered Capital3000K CNY

Hebei Minxin Composite Materials Products Co., Ltd., with its registered address located at the intersection of Yuhua East Street and Dongwai Ring Road, Zaoqiang Town, Zaoqiang County, Hengshui City, Hebei Province, is 100 meters east of the intersection. The registration authority is the Market Supervision Administration of Zaoqiang County, Hengshui City, and the legal representative is Duan Huangai. Its business scope includes general projects: manufacturing of non-metallic mineral products; Manufacturing of fiberglass and related products; Manufacturing of glass fiber reinforced plastic products; Sales of glass fiber reinforced plastic products; Sales of high-performance fibers and composite materials; Manufacturing of high-performance fibers and composite materials; Manufacturing of specialized equipment for environmental protection; Sales of specialized equipment for environmental protection; Manufacturing of atmospheric pollution monitoring and detection instruments and meters; Specialized equipment manufacturing (excluding licensed specialized equipment manufacturing); Manufacturing of dust removal technology equipment; Manufacturing of coal-fired flue gas desulfurization and denitrification equipment; Sales of pipeline transportation equipment; Manufacturing of pumps and vacuum equipment; Manufacturing of ordinary valves and plugs (excluding special equipment manufacturing); Installation services for ordinary mechanical equipment; Sales of pumps and vacuum equipment; Manufacturing of refrigeration and air conditioning equipment; Rubber product manufacturing; Sales of synthetic materials; Sales of green composite materials for rail transit. (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: Rectangular Duct, Glass Steel Surface Well, Fiberglass Sand Filled Pipeline

TOP5
Shanghai Guanying Vibration Reduction Equipment Co., Ltd

No. 11-10, Lane 333, Rongbei Road, Songjiang District, Shanghai, Building 11, No. 11-4

Overall Score4.7 / 5
Est. Date2010-10-28
Registered Capital4600K CNY

Shanghai Guanying Vibration Reduction Equipment Co., Ltd., located at No. 11-10, Lane 333, Rongbei Road, Songjiang District, Shanghai, was established on October 28, 2010. The registered authority is the Songjiang District Market Supervision Administration, and the legal representative is Liu Cuilan. Core products: Rectangular Duct

TOP6
Jiashi (Taizhou) Environmental Protection Technology Co., Ltd
Overall Score4.6 / 5
Est. Date2017-05-16
Registered Capital1000K CNY

Jiashi (Taizhou) Environmental Protection Technology Co., Ltd., registered at No. 58 Xinggang North Road, Sanyang Village, Yanling Street, Taixing City, registered with the Taixing Administrative Approval Bureau, with Xie Bei as the legal representative. Its business scope includes licensed projects such as wire and cable manufacturing; Construction labor subcontracting (projects that require approval by law and can only be carried out after approval by relevant departments, with specific business projects subject to approval results) General projects: natural science research and experimental development; Processing of renewable resources; Operation of wires and cables; Manufacturing of architectural decoration, plumbing components, and other metal products for building use; Engineering and technical research and experimental development; Wastewater treatment and its recycling; Manufacturing of specialized chemical products (excluding hazardous chemicals); Manufacturing of specialized equipment for environmental protection; Manufacturing of specialized instruments and meters for environmental monitoring; Sales of specialized equipment for environmental protection; Sales of specialized instruments and meters for environmental monitoring; Manufacturing of ecological environment monitoring and detection instruments and meters; Sales of ecological environment monitoring and detection instruments and meters; Municipal facility management; Construction of landscaping and greening projects; Environmental consulting services; Specialized equipment manufacturing (excluding licensed specialized equipment manufacturing); Engineering management services; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Research and development of resource recycling technology; Manufacturing of electronic components and electromechanical equipment; Manufacturing of power electronic components; Manufacturing of electronic components; Sales of electronic components and electromechanical equipment; Sales of electrical and mechanical equipment; Manufacturing of mechanical and electrical equipment; Manufacturing of electronic specialized equipment; Sales of power electronic components; Manufacturing of intelligent instruments and meters; Intelligent basic manufacturing equipment manufacturing; Manufacturing of metal forming machine tools; Sales of metal forming machine tools; General equipment manufacturing (excluding special equipment manufacturing); Manufacturing of specialized electrical and mechanical equipment; Manufacturing of refrigeration and air conditioning equipment; Sales of refrigeration and air conditioning equipment; Mechanical equipment research and development; Fan and fan manufacturing; Sales of fans and blowers; Manufacturing of ecological environment materials; Sales of pipeline transportation equipment; Manufacturing of optoelectronic devices; Sales of optoelectronic devices; Manufacturing of other electronic devices; Manufacturing of electrical equipment; Sales of ecological environment materials (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: Rectangular Duct, , Pp Washing Tower

TOP7
Hebei Leite Pipeline Equipment Manufacturing Co., Ltd
Overall Score4.6 / 5
Est. Date2022-10-09
Registered Capital10000K CNY

Hebei Leite Pipeline Equipment Manufacturing Co., Ltd., registered in Houliuzhuang Village, Yanshan Town, Yanshan County, with the registration authority of Yanshan County Market Supervision Administration and the legal representative of Pan Jiasheng. Its business scope includes general projects: metal structure manufacturing; Rolling and processing of non-ferrous metals; Steel and iron smelting; Steel rolling processing; Manufacturing of non-ferrous metal alloys; Manufacturing of metal tools; Manufacturing of metal packaging containers and materials; Manufacturing of metal wire ropes and their products; Manufacturing of metal fittings for construction; Manufacturing of architectural decoration, plumbing components, and other metal products for building use; Manufacturing of metal products for safety and firefighting purposes; Metal surface treatment and heat treatment processing; Manufacturing of metal daily necessities; Manufacturing of metal signs for transportation and public management; Manufacturing of metal chains and other metal products; Manufacturing of metal materials; Metal cutting processing services; Repair of metal products; Sales of anti-corrosion materials; Sales of insulation materials. (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: Rectangular Duct, Mining Coated Plastic Pipeline, Ceramic Wear-Resistant Tube

TOP8
Wenzhou Huadun Steel Industry Co., Ltd
Overall Score4.6 / 5
Est. Date2018-05-23
Registered Capital5000K CNY

Wenzhou Huadun Steel Industry Co., Ltd. is located at 988 Tianzhong Road, Yongzhong Street, Longwan District, Wenzhou City, Zhejiang Province, China. It was established on May 23, 2018, and registered with the Longwan District Market Supervision Administration of Wenzhou City. The legal representative is Li Chuanliang. Core products: Rectangular Duct

TOP9
Hebei Hechang Environmental Protection Equipment Co., Ltd
Overall Score4.4 / 5
Est. Date2018-05-21
Registered Capital10000K CNY

Hebei Hechang Environmental Protection Equipment Co., Ltd. is registered at Fuqiang North Road, Zaoqiang Town, Zaoqiang County, Hengshui City, Hebei Province. The registration authority is the Market Supervision Administration of Zaoqiang County, Hengshui City, and the legal representative is Wu Renzhong. Its business scope includes processing, manufacturing, installation, and sales of evaporative air cooling towers, energy-saving closed cooling towers, water treatment equipment, environmental protection equipment, dust removal equipment, conveying machinery and accessories, ventilation equipment, air purification equipment, chemical water treatment equipment, sewage treatment equipment, power equipment, mechanical equipment, fiberglass products, fiberglass transportation facilities, molded products, rubber products, plastic products, metal products, aluminum alloy products, soundproof products, extruded profiles, central air conditioning, pipeline products, fiberglass wrapped pipelines, containers, Cooling tower and packing, filter, mechanical and electrical installation, After sales and maintenance of epoxy flooring, anti-corrosion and insulation engineering and above products, export business of self-produced products and technologies of the enterprise, and import business of mechanical equipment, spare parts, raw materials and technologies required by the enterprise, except for goods and technologies restricted or prohibited from import and export by the state. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Rectangular Duct, Fiberglass Cover Plate, Fiberglass Duct

TOP10
Jiangsu Qinding Metal Materials Co., Ltd
Overall Score4.3 / 5
Est. Date2019-03-18
Registered Capital10080K CNY

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: Rectangular Duct, Square Tube Series, Stainless Steel Processing Parts

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Zhejiang Wuyue Stainless Steel Co., Ltd2018-12-28Rectangular Duct, Stainless Steel Pipe, Stainless Steel Pipe Fittings15000K CNYSupported
Hebei Chuangxing Fiberglass Co., Ltd2019-08-16Rectangular Duct, Fiberglass Purification Tower, Frp Fan3000K CNYSupported
Hebei Chenhao Environmental Protection Equipment Co., Ltd2018-04-10Rectangular Duct, Centrifugal Fan, Pp Air Duct5000K CNYSupported
Hebei Minxin Composite Materials Products Co., Ltd2022-10-12Rectangular Duct, Glass Steel Surface Well, Fiberglass Sand Filled Pipeline3000K CNYSupported
Shanghai Guanying Vibration Reduction Equipment Co., Ltd2010-10-28Rectangular Duct4600K CNYNot Supported
Jiashi (Taizhou) Environmental Protection Technology Co., Ltd2017-05-16Rectangular Duct, , Pp Washing Tower1000K CNYNot Supported
Hebei Leite Pipeline Equipment Manufacturing Co., Ltd2022-10-09Rectangular Duct, Mining Coated Plastic Pipeline, Ceramic Wear-Resistant Tube10000K CNYSupported
Wenzhou Huadun Steel Industry Co., Ltd2018-05-23Rectangular Duct5000K CNYSupported
Hebei Hechang Environmental Protection Equipment Co., Ltd2018-05-21Rectangular Duct, Fiberglass Cover Plate, Fiberglass Duct10000K CNYNot Supported
Jiangsu Qinding Metal Materials Co., Ltd2019-03-18Rectangular Duct, Square Tube Series, Stainless Steel Processing Parts10080K CNYSupported

Purchasing Guide

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

  • In the actual procurement process of rectangular pipes, it is recommended to prioritize confirming technical parameters such as cross-sectional dimensions, wall thickness, and material to ensure compatibility with the design requirements of ventilation systems or mechanical structures.
  • When selecting suppliers, priority should be given to product compatibility, business qualifications, enterprise activity, industry performance, and companies with industry data support. Such suppliers usually provide more stable delivery capabilities.
  • Rectangular pipes are commonly used in industrial plant ventilation, clean room air supply, and other scenarios. When purchasing, galvanized steel plates or stainless steel materials should be selected according to the pressure resistance level and anti-corrosion requirements.
  • For high flow ventilation scenarios, it is recommended to evaluate the wind resistance coefficient data provided by suppliers and screen enterprises that have long served similar projects based on industry performance.

Knowledge Base

Q

This article analyzes the core differences between stainless steel rectangular pipes and square pipes, from cross-sectional characteristics, load-bearing characteristics to application scenarios, to help you easily choose the suitable pipe type.

Q

Baidu AiGou will help you find pictures of square pipes of different categories, and take you to appreciate the diversity and uniqueness of square pipes. At the same time, we also recommend high-quality square pipes as pipeline products, so that you can easily and quickly find the most suitable square pipe for yourself when purchasing.

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