2026 Top 10 Rectangular Duct Manufacturers in China

Cangzhou Jingyu Machine Tool Accessories Manufacturing Co., Ltd

Cangzhou Jingyu Machine Tool Accessories Manufacturing Co., Ltd., registered at No. 277 Wangxin Village, Qingyun Town, Yanshan County, with the registration authority of Yanshan County Market Supervision Administration and the legal representative of Yu Jindang. Its business scope includes mechanical parts, protective covers, chip conveyors, drag chains, machine tool work lights, groove plates, and collision blocks; Manufacturing of CNC machine tool accessories, mechanical auxiliary equipment, conveying machinery accessories, and ventilation equipment accessories. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Rectangular Duct, Steel Plate Protective Cover, External Protection

Wuhan Jiuzhou Hantong HVAC Equipment Co., Ltd

Wuhan Jiuzhou Hantong HVAC Equipment Co., Ltd., with its registered address at No. 12-31, Wuhan International Stone City Store, Hejia Hubei Street, Daqiao New District, Jiangxia District, Wuhan City, Hubei Province, is registered with the Market Supervision Administration of Jiangxia District, Wuhan City. The legal representative is Guo Guolong, and its business scope includes general projects such as fan and fan manufacturing, building decoration, plumbing pipe parts and other metal products for construction, steel rolling processing, refrigeration and air conditioning equipment manufacturing, mechanical parts and component processing, household appliance manufacturing, general equipment manufacturing (excluding special equipment manufacturing), metal material manufacturing, non-ferrous metal rolling processing, fan and fan sales, valve and plug sales, refrigeration and air conditioning equipment sales, environmental protection special equipment sales, metal structure sales. Sales, sales of metal materials, sales of labor protection products, sales of electronic specialized equipment, Sales of mechanical and electrical equipment, sales of pipeline transportation equipment, sales of plastic products, and sales of rubber products. (Except for licensed businesses, it is allowed to independently operate projects that are not prohibited or restricted by laws and regulations) Licensed projects: residential interior decoration and construction engineering design. (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, High Galvanized Spiral Air Duct, Ventilation Equipment

Hebei Minxin Composite Materials Products Co., Ltd

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, Fiberglass Cable Tray, Fiberglass Sand Filled Pipeline

Hengshui Hengjing Building Materials Co., Ltd

Hengshui Hengjing Building Materials Co., Ltd., with its registered address located 75 meters south of the intersection of Donghuan North Road and Zhandong Street in Zaoqiang County, Hengshui City, Hebei Province, is registered with the Market Supervision and Administration Bureau of Zaoqiang County, Hengshui City. The legal representative is Ma Yanchao, and its business scope includes general projects such as cement product manufacturing; Sales of building materials; Sales of building decoration materials; Construction of earthwork engineering; Construction of landscaping and greening projects; Sales of cement products; Manufacturing of lightweight building materials; Sales of lightweight building materials; Sales of insulation materials; Sales of refractory materials; Manufacturing of insulation and soundproofing materials; Sales of insulation and soundproofing materials; Manufacturing of sealing fillers; Sales of sealing fillers; Manufacturing of daily ceramic products; Sales of daily ceramic products; Manufacturing of non-metallic mineral products; Sales of non-metallic minerals and products; Manufacturing of hardware products; Wholesale of hardware products; Sales of metal products; Manufacturing of metal structures; Sales of metal structures; Sales of mechanical equipment; Sales of fiberglass and related products; Manufacturing of glass fiber reinforced plastic products; Sales of glass fiber reinforced plastic products; Manufacturing of plastic products; Sales of plastic products; Rubber product manufacturing; Sales of rubber products; Land consolidation services; Mechanical equipment leasing; Installation services for ordinary mechanical equipment; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion. (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, Fiberglass Bridge Elbow, Fiberglass Extruded Rectangular Tube

Zhenjiang Yulin Pipe Industry Co., Ltd

Zhenjiang Yulin Pipe Industry Co., Ltd., with its registered address at Group 9, Liudunzi Village, Youfang Town, Yangzhong City, Zhenjiang City, is registered with the Yangzhong Administrative Approval Bureau and its legal representative is Zhu Ping. Its business scope includes the processing, manufacturing, and installation of pipe fittings, pipeline equipment, valves, switchgear, busbars, plastic products, tetrafluoroethylene products, and supports and hangers; Sales of metal materials, metal products, fire-fighting equipment, lighting fixtures, and chemical raw materials (excluding hazardous chemicals). General project: Sales of plastic products (except for projects that require approval by law, business activities can be carried out independently based on the business license). Core products: Rectangular Duct, , Pp Pipe

Hebei Guiyu Environmental Protection Equipment Co., Ltd

Hebei Guiyu Environmental Protection Equipment Co., Ltd. is registered in Xilingou Village, Tanglin Township, Zaoqiang County, Hengshui City, Hebei Province. The registration authority is the Administration for Industry and Commerce of Zaoqiang County, Hengshui City, and the legal representative is Jia Guoqiang. Its business scope includes processing, manufacturing, and selling fiberglass products and composite materials, rubber products, central air conditioning supporting products, fire exhaust equipment, automation supporting products, air pollution control equipment, solid waste and water treatment equipment, purification and energy-saving equipment, environmental engineering design, and engineering construction and installation. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Rectangular Duct, Frp Pipe Fittings, Closed Circuit Cooling Tower

Jiashi (Taizhou) Environmental Protection Technology Co., Ltd

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 Activated Carbon Adsorption Box