Updated Oct 17, 2026 · Public platform & industry data

Oct 17, 2026 Updated

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2026 Top 10 Ductile Iron Round Manhole Cover Manufacturers in China

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Top-rated Ductile Iron Round Manhole Cover suppliers, How to choose a Ductile Iron Round Manhole Cover manufacturer, Best Ductile Iron Round Manhole Cover companies in China

The top 10 Ductile Iron Round Manhole Cover manufacturers in China for 2026 are: Shaanxi Aoyu Industrial Co., Ltd, Shaanxi Linsu Pipeline Technology Co., Ltd, Shandong Baogai New Material Technology Co., Ltd, Shandong Xufeng New Material Technology Co., Ltd, Shandong Xiangda Building Materials Co., Ltd, Shandong Yihang Metal Manufacturing Co., Ltd, Ganxing Building Materials Business Department, Kunming Economic and Technological Development Zone, Shandong Xinhongshun Metal Products Co., Ltd, Chongqing Linghui Materials Co., Ltd, Xinjiang Hesheng Gangyuan Iron and Steel 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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Shaanxi Aoyu Industrial Co., Ltd
Overall Score4.9 / 5
Est. Date2021-08-20
Registered Capital500K CNY

Shaanxi Aoyu Industrial Co., Ltd., with its registered address at Gaojing Avenue, Shaanxi Guochu Logistics Park Pipeline Industrial Zone, Yongle Town, Jinghe New City, Xixian New Area, Shaanxi Province. The registration authority is Jinghe New City Branch of the Market Supervision Administration of Xixian New Area, Shaanxi Province, and the legal representative is Ye Yingyan. Its business scope includes general projects such as plastic product manufacturing; Rubber product manufacturing; Manufacturing of glass fiber reinforced plastic products; Manufacturing of plastic packaging boxes and containers; Manufacturing of synthetic materials (excluding hazardous chemicals); Manufacturing of building waterproofing membrane products; Manufacturing of material handling equipment; Sales of plastic products; Sales of rubber products; Sales of pipeline transportation equipment; Wholesale of hardware products; Sales of building decoration materials; Sales of electronic components and electromechanical equipment; Sales of metal products; Sales of valves and plugs; Sales of synthetic materials; General cargo warehousing services (excluding projects requiring permits and approvals such as hazardous chemicals); Sales of building waterproofing membrane products; Sales of glass fiber reinforced plastic products; Sales of metal chains and other metal products; Supply chain management services; Operation of wires and cables; Loading and unloading handling; Office services; Engineering management services; Enterprise management consulting; Marketing planning; Technology intermediary services; Network technology services; Internet of Things technology services; Conference and exhibition services; Specialized equipment repair; Construction of landscaping and greening projects; Agricultural specialties and auxiliary activities; Agricultural and horticultural services; Intelligent agricultural management; Information consulting services (excluding licensed information consulting services); Labor services (excluding labor dispatch); Data processing and storage support services; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion (except for projects that require approval according to law, business activities can be carried out independently with a business license in accordance with the law).. Core products: Ductile Iron Round Manhole Cover, Pe Replacement Pipe, Deformed Steel Bar

Top 2
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Shaanxi Linsu Pipeline Technology Co., Ltd
Overall Score4.8 / 5
Est. Date2022-01-27
Registered Capital5180K CNY

Shaanxi Linsu Pipeline Technology Co., Ltd., with its registered address located in Guochu Logistics Park Pipeline Industrial Zone, Gaojing Avenue, Yongle Town, Jinghe New City, Xixian New Area, Shaanxi Province. The registration authority is Jinghe New City Branch of the Market Supervision Administration of Xixian New Area, Shaanxi Province, and the legal representative is Hu Shuchao. Its business scope includes general projects such as pipeline transportation equipment sales; Sales of rubber products; Sales of plastic products; Manufacturing of glass fiber reinforced plastic products; Sales of insulation materials; Sales of metal products; Sales of new metal functional materials; Operation of wires and cables; Sales of building decoration materials; Wholesale of hardware products; Manufacturing of plastic products; Rubber product manufacturing; Manufacturing of metal packaging containers and materials; Manufacturing of building waterproofing membrane products; Manufacturing of synthetic materials (excluding hazardous chemicals); Manufacturing of non-metallic mineral products; Manufacturing of fiberglass and related products; Manufacturing of new building materials (excluding hazardous chemicals); Manufacturing of lightweight building materials; Manufacturing of plastic packaging boxes and containers; Manufacturing of metal structures; Sales of metal packaging containers and materials; Sales of metal structures; Sales of building waterproofing membrane products; Sales of valves and plugs; Sales of steel reinforcement products for construction; Sales of glass fiber reinforced plastic products; Sales of fiberglass and related products; Sales of synthetic materials; Sales of high-quality synthetic rubber; Research and development of metal products; Sales of metal chains and other metal products; Sales of building materials; Sales of lightweight building materials; Retail of hardware products; Promotion services for new material technology; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion (except for projects that require approval according to law, business activities can be carried out independently with a business license in accordance with the law).. Core products: Ductile Iron Round Manhole Cover, Ductile Iron Manhole Cover, Polyurethane Insulation Pipe

Top 3
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Shandong Baogai New Material Technology Co., Ltd
Overall Score4.8 / 5
Est. Date2009-01-22
Registered Capital43400K CNY

Shandong Baogai New Materials Technology Co., Ltd., with its registered address at No. 9 Hezhuang New Materials Park, Zibo Economic Development Zone, Zibo City, Shandong Province, is registered with the Zibo Market Supervision Administration Bureau and represented by Liu Zhentao. Its business scope includes general projects such as research and development of new material technology; Manufacturing of glass fiber reinforced plastic products; Sales of glass fiber reinforced plastic products; Manufacturing of power facilities and equipment; Sales of power facilities and equipment; Research and development of efficient and energy-saving technologies in the power industry; Manufacturing of cement products; Sales of cement products; Manufacturing of concrete structural components; Sales of concrete structural components; Manufacturing of high-speed rail equipment and accessories; Sales of high-speed rail equipment and accessories; Automotive parts research and development; Manufacturing of automotive parts and accessories; Wholesale of automotive spare parts; Manufacturing of power electronic components; Sales of power electronic components; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Research and development of hardware products; Manufacturing of hardware products; Sales of metal products; Sales of metal materials; Internet sales (except for the sale of goods that need to be licensed); Mold manufacturing; Mold sales; Construction of earthwork engineering; Production of chemical products (excluding licensed chemical products); Sales of chemical products (excluding licensed chemical products); Engineering management services; Import and export of goods. (Except for projects that require approval according to law, business activities can be carried out independently based on the business license) Licensed projects: construction engineering construction (except for nuclear power plant construction and operation, civil airport construction); Installation, maintenance, and testing of power transmission, supply, and receiving facilities. (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: Ductile Iron Round Manhole Cover, Cable Trench Cover, Composite Cover Plate

TOP4
Shandong Xufeng New Material Technology Co., Ltd
Overall Score4.7 / 5
Est. Date2021-06-28
Registered Capital6000K CNY

Shandong Xufeng New Material Technology Co., Ltd., with its registered address located in the east courtyard of Sijiaofang Village Committee, Fengshui Town, Zibo Economic Development Zone, Zibo City, Shandong Province, China. The registration authority is the Market Supervision and Administration Bureau of Zibo Economic Development Zone, and the legal representative is Huang Jiashui. Its business scope includes general projects such as research and development of new material technology; Promotion services for new material technology; Sales of new metal functional materials; Manufacturing of power facilities and equipment; Manufacturing of glass fiber reinforced plastic products; Sales of glass fiber reinforced plastic products; Sales of power facilities and equipment; Sales of cement products; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Manufacturing of plastic products; Sales of plastic products; Sales of building materials; Sales of lightweight building materials; Engineering and technical research and experimental development; Research and development of hardware products; Wholesale of hardware products; Retail of hardware products; Sales of metal materials; Sales of rubber products; Sales of synthetic materials; Research and development of emerging energy technologies; Sales of specialized chemical products (excluding hazardous chemicals); Sales of sealing fillers; Sales of chemical products (excluding licensed chemical products); Research and development of electronic specialized materials; Sales of building decoration materials; Manufacturing of household textile products; Import and export of goods. (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: Ductile Iron Round Manhole Cover, Cable Trench Cover, Composite Manhole Cover

TOP5
Shandong Xiangda Building Materials Co., Ltd

No. 56 Diaozhuang Village, Yansi Street Office, Dongchangfu District, Liaocheng City, Shandong Province

Overall Score4.7 / 5
Est. Date2022-08-22
Registered Capital10000K CNY

Shandong Xiangda Building Materials Co., Ltd., located at No. 56 Diaozhuang Village, Yansi Street Office, Dongchangfu District, Liaocheng City, Shandong Province, was established on August 22, 2022. The registration authority is the Market Supervision Administration of Dongchangfu District, Liaocheng City, and the legal representative is Yuan Xiaofeng. Core products: Ductile Iron Round Manhole Cover

TOP6
Shandong Yihang Metal Manufacturing Co., Ltd
Overall Score4.6 / 5
Est. Date2022-04-12
Registered Capital5000K CNY

Shandong Yihang Metal Manufacturing Co., Ltd., with its registered address at No. 267 Daliguantun Village, Jiangguantun Street, Liaocheng Economic and Technological Development Zone, Shandong Province, is registered with the Market Supervision and Administration Bureau of Liaocheng Economic and Technological Development Zone. The legal representative is Cheng Shougong, and its business scope includes general projects such as metal structure manufacturing; Manufacturing of hardware products; Wholesale of hardware products; Manufacturing of metal materials; Sales of metal materials; Manufacturing of metal signs for transportation and public management; Manufacturing of architectural decoration, plumbing components, and other metal products for building use; Manufacturing of power transmission, distribution and control equipment; Manufacturing of non-ferrous metal alloys; Manufacturing of metal tools; Manufacturing of metal wire ropes and their products; Rolling and processing of non-ferrous metals; Research and development of metal products; Manufacturing of metal processing machinery; Manufacturing of metal daily necessities; Steel rolling processing; Mold manufacturing; Sales of metal chains and other metal products; Sales of building decoration materials; Sales of metal fittings for construction. (Except for projects that require approval according to law, business activities can be carried out independently based on the business license.) Licensed project: construction project construction. (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: Ductile Iron Round Manhole Cover, Manhole Cover, Bridge And Road Collision Barriers

TOP7
Ganxing Building Materials Business Department, Kunming Economic and Technological Development Zone
Overall Score4.6 / 5
Est. Date2020-12-10
Registered Capital-

Ganxing Building Materials Business Department of Kunming Economic and Technological Development Zone, with its registered address at No. 02-1, Building C3, Baoxiang Logistics Park, Luoyang Street Office, Kunming Economic Development Zone, China (Yunnan) Pilot Free Trade Zone. The registration authority is Kunming Market Supervision Administration Bureau, and the legal representative is Chen Xiuping. Its business scope includes general projects: sales of building materials; Sales of metal 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: Ductile Iron Round Manhole Cover, Steel, I-Beams For Bridge Construction

TOP8
Shandong Xinhongshun Metal Products Co., Ltd
Overall Score4.6 / 5
Est. Date2017-04-17
Registered Capital5000K CNY

Shandong Xinhongshun Metal Products Co., Ltd., with its registered address at Room 709, Xinglong Building, East End of Liaohe Road, Liaocheng Economic Development Zone, Shandong Province, is registered with the Market Supervision and Administration Bureau of Liaocheng Economic and Technological Development Zone. The legal representative is Wu Lili, and its business scope includes wholesale and retail of steel pipes, building materials, profiles, plates, round steel, guardrails, manhole covers, stainless steel pipes, stainless steel plates, stainless steel round steel, hardware products, ductile iron pipes, and mechanical accessories; Self operated and agency based import and export of goods and technologies (excluding goods and technologies prohibited by the state or involving administrative approval). (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Ductile Iron Round Manhole Cover, Lead Shot, Shot Put, Stainless Steel Pipe

TOP9
Chongqing Linghui Materials Co., Ltd
Overall Score4.4 / 5
Est. Date2019-11-06
Registered Capital1000K CNY

Chongqing Linghui Materials Co., Ltd., located at Room 11-8, Building 2, No. 109 Siyuan Road, Dadukou District, Chongqing, was established on November 6, 2019. The registration authority is the Market Supervision Administration of Dadukou District, Chongqing, and the legal representative is Wang Zuxian. Core products: Ductile Iron Round Manhole Cover

TOP10
Xinjiang Hesheng Gangyuan Iron and Steel Co., Ltd
Overall Score4.4 / 5
Est. Date2021-12-22
Registered Capital10000K CNY

Xinjiang Hesheng Gangyuan Iron and Steel Co., Ltd., with its registered address at Room 13, Building 2, Zone 5, Wangjiagou International Logistics Center, No. 1289 North Station Road, Toutunhe District, Urumqi Economic and Technological Development Zone, Xinjiang. The registration authority is the Market Supervision and Administration Bureau of Urumqi Economic and Technological Development Zone (Toutunhe District), and the legal representative is Wang Yanmin. Its business scope includes general projects such as sales of lightweight building materials; Sales of building materials; Sales of building waterproofing membrane products; Repair of metal products; Sales of metal chains and other metal products; Sales of metal products; Sales of firefighting equipment; Sales of building decoration materials; Operation of wires and cables; Furniture sales; Sales of mechanical equipment; Sales of office equipment and consumables; Mechanical equipment leasing; Sales of office equipment; Sales of steel reinforcement products for construction; Sales of metal materials; Scale sales; Bearing sales; Sales of metal structures. (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: Ductile Iron Round Manhole Cover, Galvanized Angle Steel, Deformed Steel Bar

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Shaanxi Aoyu Industrial Co., Ltd2021-08-20Ductile Iron Round Manhole Cover, Pe Replacement Pipe, Deformed Steel Bar500K CNYSupported
Shaanxi Linsu Pipeline Technology Co., Ltd2022-01-27Ductile Iron Round Manhole Cover, Ductile Iron Manhole Cover, Polyurethane Insulation Pipe5180K CNYSupported
Shandong Baogai New Material Technology Co., Ltd2009-01-22Ductile Iron Round Manhole Cover, Cable Trench Cover, Composite Cover Plate43400K CNYSupported
Shandong Xufeng New Material Technology Co., Ltd2021-06-28Ductile Iron Round Manhole Cover, Cable Trench Cover, Composite Manhole Cover6000K CNYNot Supported
Shandong Xiangda Building Materials Co., Ltd2022-08-22Ductile Iron Round Manhole Cover10000K CNYSupported
Shandong Yihang Metal Manufacturing Co., Ltd2022-04-12Ductile Iron Round Manhole Cover, Manhole Cover, Bridge And Road Collision Barriers5000K CNYNot Supported
Ganxing Building Materials Business Department, Kunming Economic and Technological Development Zone2020-12-10Ductile Iron Round Manhole Cover, Steel, I-Beams For Bridge Construction-Supported
Shandong Xinhongshun Metal Products Co., Ltd2017-04-17Ductile Iron Round Manhole Cover, Lead Shot, Shot Put, Stainless Steel Pipe5000K CNYSupported
Chongqing Linghui Materials Co., Ltd2019-11-06Ductile Iron Round Manhole Cover1000K CNYNot Supported
Xinjiang Hesheng Gangyuan Iron and Steel Co., Ltd2021-12-22Ductile Iron Round Manhole Cover, Galvanized Angle Steel, Deformed Steel Bar10000K CNYNot Supported

Purchasing Guide

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

  • When purchasing ductile iron manhole covers, it is usually necessary to focus on the load-bearing grade and diameter specifications. For example, the D400 grade in the EN124 standard is suitable for motor vehicle lanes, while the lightweight B125 grade is more suitable for pedestrian or green belt scenarios.
  • 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 and long-term cooperation potential.
  • For high-frequency compaction scenarios such as municipal engineering or industrial parks, it is recommended to choose ductile iron round manhole covers with a thickness of not less than 70mm and anti slip patterns to improve compressive performance and safety.
  • When evaluating different application requirements, attention should be paid to the anti-theft design (such as built-in hinges or locks) and corrosion resistance of manhole covers, especially in special environments such as coastal or chemical plant surroundings where surface treatment processes need to be strengthened.

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