Updated Sep 11, 2026 · Public platform & industry data

Sep 11, 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: Hebei Ouyi Technology Group Co., Ltd, Yanshan Zhuodi Machine Tool Accessories Co., Ltd, Baoding Tangge Environmental Protection Equipment Technology Co., Ltd, Beijing Shengtuoda Ventilation Engineering Co., Ltd, Xiamen Green Control Environmental Protection Technology Co., Ltd, Jiaxing Qianbang Environmental Protection Equipment Co., Ltd, Tianjin Nord Ventilation and Purification Equipment Co., Ltd, Langfang Longsheng Environmental Protection Equipment Co., Ltd, Dezhou Jute Rubber Products Co., Ltd, Dezhou Chengyu Wear resistant 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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Hebei Ouyi Technology Group Co., Ltd
Overall Score4.9 / 5
Est. Date2012-01-12
Registered Capital100060K CNY

Hebei Ouyi Technology Group Co., Ltd., registered at the Fiberglass City Industrial Park in Zaoqiang County, registered with the Market Supervision and Administration Bureau of Zaoqiang County, Hengshui City. The legal representative is Liu Jinhua, and the business scope includes general projects such as technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Manufacturing of glass fiber reinforced plastic products; Sales of glass fiber reinforced plastic products; Construction of earthwork engineering; Construction of metal doors and windows engineering; Biomass energy technology services; Manufacturing of specialized equipment for environmental protection; Sales of specialized equipment for environmental protection; Manufacturing of plastic products; Sales of plastic products; Manufacturing of high-performance fibers and composite materials; Sales of high-performance fibers and composite materials; Manufacturing of metal structures; Sales of metal structures; Sales of metal products; Manufacturing of metal chains and other metal products; Sales of metal chains and other metal products; Wastewater treatment and its recycling; Manufacturing of specialized machinery and equipment for water resources; Manufacturing of environmental emergency technology equipment; Sales of environmental emergency technical equipment; Rubber product manufacturing; Sales of rubber products; Manufacturing of refrigeration and air conditioning equipment; Sales of refrigeration and air conditioning equipment; General equipment manufacturing (excluding special equipment manufacturing); Manufacturing of dust removal technology equipment; Manufacturing of coal-fired flue gas desulfurization and denitrification equipment; Sales of coal-fired flue gas desulfurization and denitrification equipment; Sales of coatings (excluding hazardous chemicals); Manufacturing of material handling equipment; Sales of material handling equipment; Manufacturing of arts and crafts and ceremonial items (excluding ivory and its products); Sales of arts and crafts and ceremonial supplies (excluding ivory and its products); Bearing manufacturing; Manufacturing of bearings, gears, and transmission components; Bearing sales; Sales of bearings, gears, and transmission components; Manufacturing of gears, gear reducers, and gearboxes; Sales of gears, gear reducers, and gearboxes; Manufacturing of enamel products; Sales of enamel products; Fan and fan manufacturing; Sales of fans and blowers; Manufacturing of synthetic materials (excluding hazardous chemicals); Sales of synthetic materials; Sales of anti-corrosion materials; Sales of insulation materials; Professional design services; Sales of building materials; Housing rental; Non residential real estate leasing; Rental services (excluding licensed rental services); Contract energy management; Import and export of goods; Technology import and export; Production of gas appliances; Manufacturing of digital video surveillance systems; Sales of digital video surveillance systems; Integrated circuit manufacturing; Manufacturing of integrated circuit chips and products; Integrated circuit sales; Sales of integrated circuit chips and products; Manufacturing of electronic components; Retail of electronic components; Manufacturing of specialized equipment for semiconductor devices; Sales of specialized equipment for semiconductor devices; Integrated circuit chip design and services; Wholesale of electronic components; Electronic product sales; Manufacturing of power electronic components; Sales of power electronic components; Retail of computer software, hardware, and auxiliary equipment; Wholesale of computer software, hardware, and auxiliary equipment; Information technology consulting services (except for projects that require approval according to law, business activities can be carried out independently based on the business license) License project: special equipment manufacturing; Construction project construction; Construction professional operations; Construction project design; Construction labor subcontracting; Special equipment installation, renovation, and repair (projects that require approval by law can only be carried out after approval by relevant departments, and specific business projects are subject to approval documents or licenses). Core products: Rectangular Duct, Fiberglass Stool, Packing Water Collector

Top 2
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Yanshan Zhuodi Machine Tool Accessories Co., Ltd

No. 413, Wangxin Village, Qingyun Town, Yanshan County, Cangzhou City, Hebei Province

Overall Score4.8 / 5
Est. Date2023-02-10
Registered Capital600K CNY

Yanshan Zhuodi Machine Tool Accessories Co., Ltd., located at No. 413 Wangxin Village, Qingyun Town, Yanshan County, Cangzhou City, Hebei Province, was established on February 10, 2023. The registration authority is Yanshan County Market Supervision and Administration Bureau, and the legal representative is Wang Shuliang. Core products: Rectangular Duct, Oil Cylinder Sheath, Bulk Machine Bag

Top 3
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Baoding Tangge Environmental Protection Equipment Technology Co., Ltd
Overall Score4.8 / 5
Est. Date2018-05-21
Registered Capital2000K CNY

Baoding Tanggesi Environmental Protection Equipment Technology Co., Ltd., with its registered address in Donglu Village, Donglu Township, Qingyuan District, Baoding City, Hebei Province, is registered with the Qingyuan District Market Supervision and Administration Bureau, and its legal representative is Jiekang. Its business scope includes research and development, manufacturing, sales, and installation of environmental protection equipment; Mechanical equipment leasing. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Rectangular Duct, Spray Tower, Plastic Air Duct

TOP4
Beijing Shengtuoda Ventilation Engineering Co., Ltd
Overall Score4.7 / 5
Est. Date2018-08-16
Registered Capital100K CNY

Beijing Shengtuoda Ventilation Engineering Co., Ltd., with its registered address at Room 2213, 2nd Floor, Building 5, No. 11 Yingbin South Road, Huairou District, Beijing, is registered with the Huairou District Market Supervision Administration of Beijing. The legal representative is Shi Shuaifeng, and its business scope includes professional contracting, labor subcontracting, and construction general contracting; Leasing construction equipment and construction machinery; Building cleaning services; Professional cleaning services for mechanical equipment; Selling household appliances, fire-fighting equipment, metal products, mechanical equipment, communication equipment (excluding satellite ground receiving and transmitting equipment), and electrical equipment; Engineering survey and design. (Enterprises shall independently choose their business projects and carry out business activities in accordance with the law; for engineering survey, engineering design, and projects that require approval by law, they shall carry out business activities in accordance with the approved content after approval by relevant departments; they shall not engage in business activities prohibited or restricted by the industrial policies of this city.). Core products: Rectangular Duct, Stainless Steel Air Duct, Ventilation Duct

TOP5
Xiamen Green Control Environmental Protection Technology Co., Ltd
Overall Score4.7 / 5
Est. Date2018-12-20
Registered Capital10000K CNY

Xiamen Green Control Environmental Protection Technology Co., Ltd., with its registered address at No. 468-1, Shangtang Society, Shangtang Village, Guankou Town, Jimei District, Xiamen City, is registered with the Market Supervision Administration of Jimei District, Xiamen City. The legal representative is Zeng Kungeng, and the business scope includes general projects: manufacturing of environmental protection special equipment; Engineering and technical research and experimental development; Sales of specialized instruments and meters for environmental monitoring; Manufacturing of specialized instruments and meters for environmental monitoring; Engineering management services; Production of refractory materials; Sales of new catalytic materials and additives; Research and development of resource recycling technology; Resource recycling service technology consulting; Environmental consulting services; Research and development of carbon fiber recycling technology; Specialized equipment manufacturing (excluding licensed specialized equipment manufacturing); Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Manufacturing of specialized equipment for daily necessities production; General equipment manufacturing (excluding special equipment manufacturing); Research and development of online energy metering technology; Sales of pumps and vacuum equipment; Manufacturing of specialized instruments; Sales of pneumatic power machinery and components; Fan and fan manufacturing; Manufacturing of electronic components and electromechanical equipment; Sales of electronic components and electromechanical equipment; Sales of gas compression machinery; Sales of lightweight building materials; Retail of hardware products; Construction of landscaping and greening projects; Manufacturing of insulation and soundproofing materials; Installation services for ordinary mechanical equipment. (Except for projects that require approval according to law, business activities can be carried out independently based on the business license) Licensed project: construction labor subcontracting; Certification services; Construction project construction; Construction project design; Electrical installation services. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments. The specific business projects shall be subject to the approval documents or licenses issued by the relevant departments.). Core products: Rectangular Duct, Pp Sedimentation Tank, Pp Electrode

TOP6
Jiaxing Qianbang Environmental Protection Equipment Co., Ltd
Overall Score4.6 / 5
Est. Date2021-04-06
Registered Capital1000K CNY

Jiaxing Qianbang Environmental Protection Equipment Co., Ltd., with its registered address located on the first floor of the second building south of Xinhe Road West, Yuxin Town, Nanhu District, Jiaxing City, Zhejiang Province (Zhejiang Fengheng Electric Appliance Co., Ltd.), is registered with the Administrative Approval Bureau of Nanhu District, Jiaxing City. The legal representative is Xu Qinzhe, and the business scope includes general projects: sales of environmental protection special equipment; General equipment manufacturing (excluding special equipment manufacturing); Fan and fan manufacturing; Manufacturing of hardware products; Manufacturing of metal tools; Mechanical equipment research and development; Research and development of hardware products; Research and development of metal products; Sales of specialized instruments and meters for environmental monitoring; Sales of refrigeration and air conditioning equipment; Sales of metal structures; Sales of metal tools; Sales of metal materials; Sales of building materials; Sales of building decoration materials; Sales of firefighting equipment; Sales of security equipment; Sales of insulation materials; Retail of hardware products; Electronic product sales; Sales of plastic products; Sales of rubber products; Sales of labor protection equipment; Operation of wires and cables; Wholesale of kitchenware, sanitary ware, and daily necessities; Retail of daily household appliances; Sales of daily necessities; Sales of instruments and meters; Sales of mechanical equipment; Sales of mechanical and electrical equipment; Packaging services; Installation services for ordinary mechanical equipment; Home appliance installation services; Furniture installation and maintenance services; Repair of daily electrical appliances; Repair of metal products; Electrical equipment repair; General equipment repair; Specialized equipment repair; Instrument and meter repair; Residential water and electricity installation and maintenance services; Maintenance of electronic and mechanical equipment (excluding special equipment); Technology import and export; Import and export of goods (except for projects that require approval according to law, conducting business activities independently based on the business license in accordance with the law). Licensed project: Construction project construction; Residential interior decoration and renovation; Electrical installation services (projects that require approval by law can only be carried out after approval by relevant departments, and specific business projects are subject to the approval results).. Core products: Rectangular Duct, Ventilation Duct, Axial Flow Fan

TOP7
Tianjin Nord Ventilation and Purification Equipment Co., Ltd
Overall Score4.6 / 5
Est. Date2017-11-02
Registered Capital5000K CNY

Tianjin Nord Ventilation and Purification Equipment Co., Ltd., registered at 1905, Building 1, Bihai Changju, Binhai New Area, Tianjin, registered with the Market Supervision and Administration Bureau of Binhai New Area, Tianjin, with Li Haidang as the legal representative. Its business scope includes the manufacturing and sales of purification equipment; Sales of ventilation equipment, environmental protection equipment, insulation pipes, steel, stainless steel products, building materials, decoration materials, metal products, mechanical equipment, hardware and electrical equipment; Installation and maintenance of ventilation equipment, electromechanical equipment, and air conditioning refrigeration equipment; Processing of metal products and wrought iron products; Indoor and outdoor decoration engineering; Construction and installation engineering; Construction of firefighting equipment engineering; Import and export of self operated and agency goods and technology; Labor services. (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 Air Duct, Galvanized Iron Sheet Air Duct

TOP8
Langfang Longsheng Environmental Protection Equipment Co., Ltd
Overall Score4.6 / 5
Est. Date2015-07-28
Registered Capital3000K CNY

Langfang Longsheng Environmental Protection Equipment Co., Ltd., with its registered address at Ligezhuang Village North, Zhaogezhuang Town, Wen'an County, Langfang City, Hebei Province, is registered with the Market Supervision and Administration Bureau of Wen'an County, Langfang City. The legal representative is Yang Shibin, and the business scope includes manufacturing and selling waste gas treatment equipment, acid mist purification equipment, dust removal equipment, desulfurization equipment, oil fume purification equipment, organic waste gas purification equipment, sewage treatment equipment, electroplating equipment, spraying equipment, spiral ducts and accessories; Design and install ventilation ducts; Manufacturing and selling hardware products. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Rectangular Duct, Galvanized Elbow, Pvc Air Duct

TOP9
Dezhou Jute Rubber Products Co., Ltd
Overall Score4.5 / 5
Est. Date2020-12-23
Registered Capital10000K CNY

Dezhou Jute Rubber Products Co., Ltd., with its registered address at No. 26, Building 4, Huayao City, Tianqu Industrial Park, Tianqu Street Office, Decheng District, Dezhou City, Shandong Province, is registered with the Market Supervision and Administration Bureau of Decheng District, Dezhou City. The legal representative is Feng Baozhi, and its business scope includes general projects such as rubber product manufacturing; Sales of rubber products; Sales of new ceramic materials; Sales of synthetic materials; Sales of special ceramic products; Sales of plastic 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, Pom Board, Nylon Rod

TOP10
Dezhou Chengyu Wear resistant Materials Co., Ltd
Overall Score4.3 / 5
Est. Date2023-02-07
Registered Capital5000K CNY

Dezhou Chengyu Wear resistant Materials Co., Ltd. is located 450 meters west of the town government in Dacao Town, Ningjin County, Dezhou City, Shandong Province. It was established on February 7, 2023 and registered with the Ningjin County Market Supervision Administration. The legal representative is Chen Dong. Core products: Rectangular Duct, Pe Polyethylene, Pp Water Tank

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Hebei Ouyi Technology Group Co., Ltd2012-01-12Rectangular Duct, Fiberglass Stool, Packing Water Collector100060K CNYSupported
Yanshan Zhuodi Machine Tool Accessories Co., Ltd2023-02-10Rectangular Duct, Oil Cylinder Sheath, Bulk Machine Bag600K CNYNot Supported
Baoding Tangge Environmental Protection Equipment Technology Co., Ltd2018-05-21Rectangular Duct, Spray Tower, Plastic Air Duct2000K CNYSupported
Beijing Shengtuoda Ventilation Engineering Co., Ltd2018-08-16Rectangular Duct, Stainless Steel Air Duct, Ventilation Duct100K CNYNot Supported
Xiamen Green Control Environmental Protection Technology Co., Ltd2018-12-20Rectangular Duct, Pp Sedimentation Tank, Pp Electrode10000K CNYNot Supported
Jiaxing Qianbang Environmental Protection Equipment Co., Ltd2021-04-06Rectangular Duct, Ventilation Duct, Axial Flow Fan1000K CNYNot Supported
Tianjin Nord Ventilation and Purification Equipment Co., Ltd2017-11-02Rectangular Duct, Stainless Steel Air Duct, Galvanized Iron Sheet Air Duct5000K CNYSupported
Langfang Longsheng Environmental Protection Equipment Co., Ltd2015-07-28Rectangular Duct, Galvanized Elbow, Pvc Air Duct3000K CNYSupported
Dezhou Jute Rubber Products Co., Ltd2020-12-23Rectangular Duct, Pom Board, Nylon Rod10000K CNYSupported
Dezhou Chengyu Wear resistant Materials Co., Ltd2023-02-07Rectangular Duct, Pe Polyethylene, Pp Water Tank5000K CNYSupported

Purchasing Guide

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

  • In the actual procurement process of rectangular ducts, it is recommended to prioritize confirming the cross-sectional dimensions and wall thickness based on the air volume requirements of the ventilation system. Conventional specifications such as 1200mm × 600mm or 800mm × 400mm should match the design parameters.
  • For different scenarios such as commercial buildings and industrial plants, the material selection of rectangular ducts needs to be distinguished. Galvanized steel plates are suitable for general environments, while stainless steel is more suitable for high humidity or corrosive environments.
  • When selecting suppliers, priority should be given to product matching, business qualifications, enterprise activity, industry performance, and enterprises with industry data support or platform statistical information to ensure supply stability.
  • In high-rise buildings or long-distance air supply systems, attention should be paid to the connection method and pressure performance of rectangular ducts, as flange connections or plug-in structures have a direct impact on sealing.

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