Updated Oct 6, 2026 · Public platform & industry data

Oct 6, 2026 Updated

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2026 Top 10 Cast Iron Sewer Cover Manufacturers in China

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Top-rated Cast Iron Sewer Cover suppliers, How to choose a Cast Iron Sewer Cover manufacturer, Best Cast Iron Sewer Cover companies in China

The top 10 Cast Iron Sewer Cover manufacturers in China for 2026 are: Shaanxi Linsu Pipeline Technology Co., Ltd, Shaanxi Aoyu Industrial Co., Ltd, Baoding Shuangcheng Building Materials Co., Ltd, Yida Precision Component Factory, Xushui District, Baoding City, Yuchi Building Materials Distribution Office, Xushui District, Baoding City, Guangdong Zongxinbao Building Materials Co., Ltd, Lanzhou Changhua Materials Co., Ltd, Shandong Liaocheng Jianhui Casting Co., Ltd, Botou Fengjun Machinery Measuring Tools Co., Ltd, Cangzhou Zerui Municipal Facilities 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 Linsu Pipeline Technology Co., Ltd
Overall Score4.9 / 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: Cast Iron Sewer Cover, Ductile Iron Manhole Cover, Polyurethane Insulation Pipe

Top 2
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Shaanxi Aoyu Industrial Co., Ltd
Overall Score4.7 / 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: Cast Iron Sewer Cover, Pe Replacement Pipe, Deformed Steel Bar

Top 3
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Baoding Shuangcheng Building Materials Co., Ltd

Qucheng Village, Suicheng Town, Xushui District, Baoding City, Hebei Province

Overall Score4.7 / 5
Est. Date2021-03-26
Registered Capital5000K CNY

Baoding Shuangcheng Building Materials Co., Ltd., located in Qucheng Village, Suicheng Town, Xushui District, Baoding City, Hebei Province, was established on March 26, 2021. The registration authority is Xushui District Market Supervision Administration, and the legal representative is Tian Yingying. Core products: Cast Iron Sewer Cover

TOP4
Yida Precision Component Factory, Xushui District, Baoding City

Dongxuzhuang Village, Dongshiduan Township, Xushui District, Baoding City, Hebei Province

Overall Score4.6 / 5
Est. Date2009-07-13
Registered Capital-

Yida Precision Component Factory, located in Dongxuzhuang Village, Dongshiduan Township, Xushui District, Baoding City, Hebei Province, was established on July 13, 2009. The registration authority is Xushui District Market Supervision and Administration Bureau, and the legal representative is Liu Zhanyuan. Core products: Cast Iron Sewer Cover

TOP5
Yuchi Building Materials Distribution Office, Xushui District, Baoding City
Overall Score4.6 / 5
Est. Date2014-05-19
Registered Capital-

Yuchi Building Materials Distribution Office in Xushui District, Baoding City, Hebei Province, with its registered address in Xishiduan Village, Dongshiduan Township, Xushui District. The registration authority is Xushui District Administration for Industry and Commerce, and the legal representative is Tian Bingbing. Its business scope includes hardware and electrical materials, cement products, cast iron well tools, tree grease well tools, and steel fiber retail. (If the above business scope involves licensed business projects, it should obtain permission from relevant departments before operation.). Core products: Cast Iron Sewer Cover, Cement Septic Tank, Cement Water Channel

TOP6
Guangdong Zongxinbao Building Materials Co., Ltd
Overall Score4.5 / 5
Est. Date2021-09-18
Registered Capital5550K CNY

Guangdong Zongxinbao Building Materials Co., Ltd., with its registered address at Shop 14, 1st Floor, Building 15, F1 Area, Guangdong Lecong Steel World, Lecong Town, Shunde District, Foshan City, Guangdong Province (registered address declared), is registered with the Market Supervision Administration of Shunde District, Foshan City, and the legal representative is Miao Jianxun. Its business scope includes general projects: sales of metal products; Sales of metal chains and other metal products; Sales of metal materials; Wholesale of hardware products; Sales of metal fittings for construction; Sales of power facilities and equipment; Sales of plastic products; Sales of cement products; Sales of engineering plastics and synthetic resins; Sales of pipeline transportation equipment; Sales of building materials; Engineering management services; Sales of rubber products; Import and export of goods. (Except for projects that require approval according to law, conduct business activities independently based on the business license) Licensed project: electrical installation services; Construction project construction; Construction labor subcontracting. (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: Cast Iron Sewer Cover, Manhole Cover, Double Frame Manhole Cover

TOP7
Lanzhou Changhua Materials Co., Ltd
Overall Score4.5 / 5
Est. Date2007-03-16
Registered Capital3000K CNY

Lanzhou Changhua Materials Co., Ltd. is registered at No. 3, Front Row, Hardware Zone 2, Xingang Logistics Park, No. 6 Huanxing West Road, Sijiqing Street, Xigu District, Lanzhou City, Gansu Province. The registration authority is the Market Supervision and Administration Bureau of Xigu District, Lanzhou City, and the legal representative is Wang Yunli. The business scope includes wholesale and retail of metal materials (excluding precious metals), building materials, hardware and electrical equipment, electronic components and electromechanical equipment, mineral products (excluding rare minerals), general equipment, packaging special equipment, coatings, anti-corrosion and insulation materials, fire-fighting equipment, plastic products, decorative materials, labor protection supplies, office supplies, and electronic products. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments)***. Core products: Cast Iron Sewer Cover, Stainless Steel, Profile

TOP8
Shandong Liaocheng Jianhui Casting Co., Ltd
Overall Score4.5 / 5
Est. Date2018-06-06
Registered Capital10000K CNY

Shandong Liaocheng Jianhui Casting Co., Ltd., with its registered address at No. 6 Wanghui Industrial Park, Beicheng Office, 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 Li Huawei, and the business scope includes general items: black metal casting; Manufacturing of metal materials; Steel rolling processing; Rolling and processing of non-ferrous metals; Sales of non-ferrous metal alloys; Sales of metal materials; Maintenance of transportation facilities; Sales of rubber products; 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: Cast Iron Sewer Cover, Ductile Iron Cover Plate, Ductile Iron Grate

TOP9
Botou Fengjun Machinery Measuring Tools Co., Ltd
Overall Score4.4 / 5
Est. Date2014-03-20
Registered Capital500K CNY

Botou Fengjun Machinery Measuring Tools Co., Ltd., with its registered address at 300 meters south of the Agricultural Power Bureau on Xihuan Road in Botou City, Cangzhou City, Hebei Province, is registered with the Botou Market Supervision and Administration Bureau. The legal representative is Guo Zhi, and its business scope includes the sales of machine tool accessories, measuring tools, machining, mooring columns, dust removal accessories, and cast iron parts. (If the above business scope involves licensed business projects, it should obtain permission from relevant departments before operation.). Core products: Cast Iron Sewer Cover, Cast Iron Bed Frame, Highway Pier

TOP10
Cangzhou Zerui Municipal Facilities Co., Ltd
Overall Score4.4 / 5
Est. Date2017-12-07
Registered Capital3000K CNY

Cangzhou Zerui Municipal Facilities Co., Ltd., with its registered address in Huizhuang Village, Yingzi Town, Botou City, Cangzhou City, Hebei Province, is registered with the Botou Market Supervision Administration Bureau and represented by Tang Yue as its legal representative. Its business scope includes general projects such as processing and sales of municipal facilities; Sales of building materials; Sales of cement products; Sales of experimental analytical instruments; Sales of instruments and meters; Sales of mechanical equipment; Sales of household appliances; Sales of plastic products; Sales of glass fiber reinforced plastic 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: Cast Iron Sewer Cover, Resin Manhole Cover, Stainless Steel Manhole Cover

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Shaanxi Linsu Pipeline Technology Co., Ltd2022-01-27Cast Iron Sewer Cover, Ductile Iron Manhole Cover, Polyurethane Insulation Pipe5180K CNYSupported
Shaanxi Aoyu Industrial Co., Ltd2021-08-20Cast Iron Sewer Cover, Pe Replacement Pipe, Deformed Steel Bar500K CNYSupported
Baoding Shuangcheng Building Materials Co., Ltd2021-03-26Cast Iron Sewer Cover5000K CNYNot Supported
Yida Precision Component Factory, Xushui District, Baoding City2009-07-13Cast Iron Sewer Cover-Not Supported
Yuchi Building Materials Distribution Office, Xushui District, Baoding City2014-05-19Cast Iron Sewer Cover, Cement Septic Tank, Cement Water Channel-Not Supported
Guangdong Zongxinbao Building Materials Co., Ltd2021-09-18Cast Iron Sewer Cover, Manhole Cover, Double Frame Manhole Cover5550K CNYNot Supported
Lanzhou Changhua Materials Co., Ltd2007-03-16Cast Iron Sewer Cover, Stainless Steel, Profile3000K CNYSupported
Shandong Liaocheng Jianhui Casting Co., Ltd2018-06-06Cast Iron Sewer Cover, Ductile Iron Cover Plate, Ductile Iron Grate10000K CNYNot Supported
Botou Fengjun Machinery Measuring Tools Co., Ltd2014-03-20Cast Iron Sewer Cover, Cast Iron Bed Frame, Highway Pier500K CNYSupported
Cangzhou Zerui Municipal Facilities Co., Ltd2017-12-07Cast Iron Sewer Cover, Resin Manhole Cover, Stainless Steel Manhole Cover3000K CNYSupported

Knowledge Base

Q

There are various types to choose from when purchasing ductile iron manhole covers in municipal procurement. Heavy duty ductile iron manhole covers are a common type that have high load-bearing capacity and can withstand significant pressure, making them suitable for areas with high traffic flow such as roads. Its material is sturdy and durable, not easily damaged, and can effectively ensure road safety. There is also an anti settlement ductile iron manhole cover, which adopts a special structure

Q

The load-bearing standard of ductile iron manhole covers is mainly based on the national standard GB/T23858-2009 "Ductile Iron Drainage System Products", and its load-bearing levels are divided into six levels: A15, B125, C250, D400, E600, and F900. Each level represents a different load-bearing capacity and is suitable for different load scenarios two 。<&list>

Q

The ductile iron manhole cover, also known as the ductile iron overflow manhole cover you previously asked about, is actually the "guardian angel" of urban underground pipelines. It is mainly used in places with many vehicles and pedestrians such as roads, sidewalks, non motorized lanes, and parking lots, responsible for covering various maintenance wellheads such as rainwater, sewage, electricity, and communication. Its core function is threefold: Safety protection: strict

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