Updated Sep 6, 2026 · Public platform & industry data

Sep 6, 2026 Updated

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2026 Top 10 Fiberglass Flange Manufacturers in China

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Top-rated Fiberglass Flange suppliers, How to choose a Fiberglass Flange manufacturer, Best Fiberglass Flange companies in China

The top 10 Fiberglass Flange manufacturers in China for 2026 are: Hebei Ouyi Technology Group Co., Ltd, Hebei Sanluwu Environmental Protection Equipment Co., Ltd, Xinjiang Mingbo Composite Materials Co., Ltd, Zaoqiang Yongzheng Environmental Protection Equipment Co., Ltd, Cangzhou Zhiang Pipeline Equipment Manufacturing Co., Ltd, Shanxi Huanguan Heavy Industry Group Co., Ltd, Hebei Chengzhi Environmental Protection Equipment Co., Ltd, Hebei Huibaifeng Fiberglass Co., Ltd, Hebei Kuolong Environmental Protection Equipment Co., Ltd, Hebei Xuneng Environmental Protection Equipment 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: Fiberglass Flange, Fiberglass Inspection Well, Fiberglass Desulfurization Tower

Top 2
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Hebei Sanluwu Environmental Protection Equipment Co., Ltd
Overall Score4.7 / 5
Est. Date2021-08-26
Registered Capital3000K CNY

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 Flange, Fiberglass Drainage Ditch, Biological Deodorization Box

Top 3
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Xinjiang Mingbo Composite Materials Co., Ltd

No. 1-05 Qinghu Mingcheng Market, No. 350 Mengjin South Road, 25th District, Wujiaqu City, Xinjiang

Overall Score4.7 / 5
Est. Date2026-02-13
Registered Capital3000K CNY

Xinjiang Mingbo Composite Materials Co., Ltd. is located at No. 1-05 Qinghu Mingcheng Market, No. 350 Mengjin South Road, 25th District, Wujiaqu City, Xinjiang. It was established on February 13, 2026 and registered with the Market Supervision and Administration Bureau of the Sixth Division of the Xinjiang Production and Construction Corps. The legal representative is Kangyang. Core products: Fiberglass Flange, Sewage Treatment Equipment, Fiberglass Pump Station

TOP4
Zaoqiang Yongzheng Environmental Protection Equipment Co., Ltd
Overall Score4.6 / 5
Est. Date2024-08-22
Registered Capital100K CNY

Zaoqiang Yongzheng Environmental Protection Equipment Co., Ltd., with its registered address at No.1 Chuangye South Road, Small and Medium sized Enterprise Entrepreneurship Park, Zaoqiang County, Hengshui City, Hebei Province, is registered with the Market Supervision and Administration Bureau of Zaoqiang County, Hengshui City. The legal representative is Zhang Haitao, 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 fiberglass and related products; Sales of glass fiber reinforced plastic products; Manufacturing of high-performance fibers and composite materials; Sales of high-performance fibers and composite materials; Sales of non-metallic minerals and products; Manufacturing of power facilities and equipment; Sales of power facilities and equipment; Municipal facility management; Construction of sports facilities engineering; Maintenance of transportation facilities; Installation services for ordinary mechanical equipment; Environmental consulting services. (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 Flange, Fiberglass Warning Ball, Cable Bracket

TOP5
Cangzhou Zhiang Pipeline Equipment Manufacturing Co., Ltd
Overall Score4.6 / 5
Est. Date2017-04-12
Registered Capital60000K CNY

Cangzhou Zhiang Pipeline Equipment Manufacturing Co., Ltd. is located in Zhenggang Park, Economic Development Zone, Yanshan County, Cangzhou City, Hebei Province, on the east side of Zhengqiang Street. The registration authority is the Market Supervision Administration of Yanshan County, and the legal representative is Gao Suolong. The business scope includes general projects: metal structure manufacturing; Manufacturing of metal tools; Manufacturing of metal materials; Mechanical parts and component processing; General equipment manufacturing (excluding special equipment manufacturing); Processing of renewable resources; Recycling of renewable resources (excluding productive waste metals); Container manufacturing; Sales of metal materials; Sales of metal products; Sales of metal structures; Sales of rubber products; Sales of plastic products; Container sales; Sales of insulation materials; Sales of anti-corrosion materials; Sales of mechanical equipment; Sales of mechanical parts and components; Sales of instruments and meters; Sales of intelligent warehousing equipment; Sales of electrical equipment; Sales of valves and plugs; Sales of chemical products (excluding licensed chemical products); Installation services for ordinary mechanical equipment; Wholesale of hardware products; Import and export of goods; Technology import and export. (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 Flange, Pipe Clamp, Cold Insulation Pipe Holder

TOP6
Shanxi Huanguan Heavy Industry Group Co., Ltd
Overall Score4.5 / 5
Est. Date2012-01-10
Registered Capital58000K CNY

Shanxi Huanguan Heavy Industry Group Co., Ltd., with its registered address in Cuijiazhuang Village, Shenshan Township, Dingxiang County, Xinzhou. The registration authority is the Dingxiang County Market Supervision Administration, and the legal representative is Yan Zekang. Its business scope includes general projects such as forging and powder metallurgy product manufacturing; Sales of forgings and powder metallurgy products; Mechanical parts and component processing; Sales of mechanical parts and components; Manufacturing of general components; Sales of metal products; Manufacturing of metal materials; Sales of metal materials; Manufacturing of metal structures; Sales of metal structures; Mechanical equipment research and development; Retail of hardware products; Operation of wires and cables; Sales of chemical products (excluding licensed chemical products); Sales of generators and generator sets; Information technology consulting services; Metal surface treatment and heat treatment processing; Manufacturing of generators and generator sets; Import and export of goods; Technology import and export; Sales of solar thermal utilization equipment; Sales of solar thermal power generation equipment; Sales of solar thermal utilization products; Sales of solar thermal power generation products; Solar power generation technology services; Manufacturing of photovoltaic equipment and components; Sales of photovoltaic equipment and components; Rental of photovoltaic power generation equipment. (Except for projects that require approval according to law, business activities can be carried out independently based on the business license) Licensed project: Road freight transportation (excluding dangerous goods); Power generation business, transmission business, and power supply (distribution) business. (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: Fiberglass Flange, Roll Shaft Forgings, Cylinder Forging

TOP7
Hebei Chengzhi Environmental Protection Equipment Co., Ltd
Overall Score4.5 / 5
Est. Date2018-08-07
Registered Capital3000K CNY

Hebei Chengzhi Environmental Protection Equipment Co., Ltd., with its registered address located in Kangma Village West, Zaoqiang Town, Zaoqiang County, Hengshui City, Hebei Province, is registered with the Market Supervision and Administration Bureau of Zaoqiang County, Hengshui City. The legal representative is Wang Zhenlin, and the business scope includes processing, manufacturing, installing, and selling environmental protection equipment, fiberglass products, molded products, pultruded products, fiberglass water tanks, stainless steel water tanks, steel plate water tanks, fiberglass valve insulation shells, molded septic tanks, molded cable trays, molded gas meter boxes, molded cable supports, molded water tanks, cooling towers, fans, water pipelines, fiberglass containers, cable protection pipes, fiberglass septic tanks, water treatment equipment, central air conditioning accessories, and power accessories. The company also operates its own products and technologies. The export business and the mechanical equipment, spare parts The import business of raw materials and technologies, 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: Fiberglass Flange, Cooling Tower Packing, Lighting Tile

TOP8
Hebei Huibaifeng Fiberglass Co., Ltd
Overall Score4.5 / 5
Est. Date2016-06-17
Registered Capital3000K CNY

Hebei Huibaifeng Fiberglass Co., Ltd. is registered in Machang Village, 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 Ma Yanchao. Its business scope includes processing, manufacturing, and selling fiberglass products and composite materials, central air conditioning supporting products, fire exhaust equipment, rubber products, automation supporting products, air pollution control equipment, fixed waste and water treatment equipment, purification and energy-saving equipment, non-standard steel structure products, gas pressure regulator equipment, power auxiliary equipment and accessories, engineering construction and installation, and environmental protection engineering design. To engage in the export business of self-produced products and technologies of our enterprise, as well as the import business of mechanical equipment, spare parts, raw materials and technologies required by our 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: Fiberglass Flange, Fiberglass Activated Carbon Adsorption Box, Fiberglass Grating

TOP9
Hebei Kuolong Environmental Protection Equipment Co., Ltd
Overall Score4.4 / 5
Est. Date2016-04-15
Registered Capital3000K CNY

Hebei Kuolong Environmental Protection Equipment Co., Ltd., with its registered address located on the east side of Fuqiang North Road 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 Liu Xiku, and its business scope includes the processing, manufacturing, and sales of fiberglass products, environmental protection equipment, deodorization equipment, ventilation equipment, water treatment equipment, and the research and production of integrated pump station complete sets of equipment; Design, production, construction, installation, sales, and distribution of fiberglass pipes, septic tanks, storage tanks, molded products, fans, plastic products, metal products, stainless steel pipes, fittings, and products: water pumps, water tanks, high and low voltage distribution cabinets, distribution boxes, steel, electrical components, instruments and meters. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Fiberglass Flange, Biological Deodorization Equipment, Frp Water Tank

TOP10
Hebei Xuneng Environmental Protection Equipment Co., Ltd
Overall Score4.4 / 5
Est. Date2017-01-04
Registered Capital10000K CNY

Hebei Xuneng Environmental Protection Equipment Co., Ltd. is registered in Machang Village, Zaoqiang Town, Zaoqiang County, Hengshui City, Hebei Province. The registration authority is the Market Supervision and Administration Bureau of Zaoqiang County, Hengshui City, and the legal representative is Ma Yanchao. Its business scope includes processing, manufacturing, installing, and selling environmental protection equipment, fiberglass products, fiberglass valve insulation shells, fiberglass disposable mold shells, fiberglass pipelines, and sand filled pipelines PE pipes, fiberglass containers, fiberglass septic tanks, fire water tanks, central air conditioning, cooling towers, fans, SMC molded products, fiberglass water tanks, stainless steel water tanks, aluminum alloy products, plastic products, gas pressure regulating equipment, liquefied gas products, power accessories, automotive parts, mechanical parts, railway and transportation accessories, anti-corrosion and insulation engineering, mechanical and electrical installation engineering, engaged in the export business of self-produced products and technologies of the enterprise and the 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: Fiberglass Flange, Fiberglass Blind Plate, Glass Fiber Reinforced Plastic Variable Diameter

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Hebei Ouyi Technology Group Co., Ltd2012-01-12Fiberglass Flange, Fiberglass Inspection Well, Fiberglass Desulfurization Tower100060K CNYSupported
Hebei Sanluwu Environmental Protection Equipment Co., Ltd2021-08-26Fiberglass Flange, Fiberglass Drainage Ditch, Biological Deodorization Box3000K CNYNot Supported
Xinjiang Mingbo Composite Materials Co., Ltd2026-02-13Fiberglass Flange, Sewage Treatment Equipment, Fiberglass Pump Station3000K CNYNot Supported
Zaoqiang Yongzheng Environmental Protection Equipment Co., Ltd2024-08-22Fiberglass Flange, Fiberglass Warning Ball, Cable Bracket100K CNYSupported
Cangzhou Zhiang Pipeline Equipment Manufacturing Co., Ltd2017-04-12Fiberglass Flange, Pipe Clamp, Cold Insulation Pipe Holder60000K CNYSupported
Shanxi Huanguan Heavy Industry Group Co., Ltd2012-01-10Fiberglass Flange, Roll Shaft Forgings, Cylinder Forging58000K CNYSupported
Hebei Chengzhi Environmental Protection Equipment Co., Ltd2018-08-07Fiberglass Flange, Cooling Tower Packing, Lighting Tile3000K CNYSupported
Hebei Huibaifeng Fiberglass Co., Ltd2016-06-17Fiberglass Flange, Fiberglass Activated Carbon Adsorption Box, Fiberglass Grating3000K CNYSupported
Hebei Kuolong Environmental Protection Equipment Co., Ltd2016-04-15Fiberglass Flange, Biological Deodorization Equipment, Frp Water Tank3000K CNYSupported
Hebei Xuneng Environmental Protection Equipment Co., Ltd2017-01-04Fiberglass Flange, Fiberglass Blind Plate, Glass Fiber Reinforced Plastic Variable Diameter10000K CNYSupported

Purchasing Guide

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

  • For procurement requirements that require the use of fiberglass flanges, it is recommended to prioritize checking key technical parameters such as pressure rating and diameter size to ensure compatibility with pipeline systems. In chemical or wastewater treatment scenarios, additional attention should be paid to corrosion resistance.
  • When selecting suppliers, priority should be given to product compatibility, business qualifications, enterprise activity, industry performance, and companies with industry data support. Such suppliers can usually provide more stable delivery capabilities in the field of fiberglass flanges.
  • In special scenarios such as ocean engineering or strong acid environments, the resin matrix material and reinforcement layer structure of fiberglass flanges need to be selected according to the characteristics of the medium to avoid premature failure caused by material mismatch.
  • When purchasing fiberglass flanges, it is usually necessary to pay close attention to the industry data support of suppliers. Platform statistical information can assist in judging the actual application performance of their products in similar projects.

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