2026 Top 10 Fiberglass Square Duct Manufacturers in China

Hebei Ouyi Technology Group Co., Ltd

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: Fiberglass Square Duct, Fiberglass Inspection Well, Fiberglass Desulfurization Tower

Hebei Qiqiang Composite Materials Co., Ltd

Hebei Qiqiang Composite Materials Co., Ltd., with its registered address at No. 101 Hengda Road, Xiaozhang Town, Zaoqiang County, Hengshui City, Hebei Province, is registered with the Market Supervision Administration of Zaoqiang County, Hengshui City. The legal representative is Song Ruru, and the business scope includes general projects: manufacturing of glass fiber reinforced plastic products; Sales of glass fiber reinforced plastic products; Sales of fiberglass and related products; Manufacturing of specialized equipment for environmental protection; Sales of specialized equipment for environmental protection; Sales of plastic products; Manufacturing of plastic products; Rubber product manufacturing; Sales of rubber products; Manufacturing of metal structures; Sales of metal structures; Sales of metal products; Mechanical parts and component processing; Sales of mechanical parts and components; Manufacturing of metal signs for transportation and public management; Manufacturing of specialized equipment for traffic safety and control; Sales of signs for transportation and public management; General equipment manufacturing (excluding special equipment manufacturing); Specialized equipment manufacturing (excluding licensed specialized equipment manufacturing); Sales of mechanical equipment; General equipment repair; Specialized equipment repair; Repair of metal products; Maintenance of transportation facilities; Installation services for environmental sanitation public facilities; 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: Fiberglass Square Duct, Fiberglass Sound Barrier,

Hebei Sanluwu Environmental Protection Equipment Co., Ltd

Hebei Sanluwu Environmental Protection Equipment Co., Ltd., with its registered address at No. 58 East Outer Ring Industrial Park, Zaoqiang County, Hengshui City, Hebei Province, is registered with the Market Supervision Administration of Zaoqiang County, Hengshui City. The legal representative is Xu Tingting, and its business scope includes the manufacturing of glass fiber reinforced plastic products. Processing, manufacturing, installation, and sales of fiberglass products, fiberglass winding products, molded products, pultruded products, hand pasted products, plastic products, power equipment, mechanical equipment, dust removal equipment, air purification equipment, water treatment equipment, water circulation cooling equipment, ventilation equipment, environmental protection equipment, central air conditioning and end products, power auxiliary equipment and accessories, metal products, conveying machinery and accessories, anti-corrosion and insulation engineering construction, gas regulator equipment, non-standard steel structure products, air pollution control equipment, rubber and plastic products, import and export business of self-produced products and technologies of the enterprise, as well as import and export business of mechanical equipment, spare parts, raw and auxiliary materials and technologies required by the enterprise, but limited or prohibited by the state for the company to operate or import and export. Excluding goods and technology. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Fiberglass Square Duct, Fiberglass Drainage Ditch, Biological Deodorization Box