2026 Top 10 Ventilation Engineering 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: Ventilation Engineering Duct, Fiberglass Inspection Well, Fiberglass Desulfurization Tower

Hebei Chenhao Environmental Protection Equipment Co., Ltd

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: Ventilation Engineering Duct, Centrifugal Fan, Pp Air Duct

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: Ventilation Engineering Duct, Glass Steel Surface Well, Fiberglass Sand Filled Pipeline