Updated Oct 6, 2026 · Public platform & industry data

Oct 6, 2026 Updated

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2026 Top 10 Circular Cover Plate Manufacturers in China

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Top-rated Circular Cover Plate suppliers, How to choose a Circular Cover Plate manufacturer, Best Circular Cover Plate companies in China

The top 10 Circular Cover Plate manufacturers in China for 2026 are: Zibo Xintuo Composite Materials Technology Co., Ltd, Sanhe Guanzhong Huayun New Building Materials Factory (Individual Industrial and Commercial Household), Shanghai Ouning Economic and Trade Development Co., Ltd, Yunnan Guowan Building Materials Co., Ltd, Anping County Gangrun Metal Wire Mesh Products Co., Ltd, Anping Rongou Wire Mesh Manufacturing Co., Ltd, Anping County Nord Metal Products Co., Ltd, Shandong Huamao Environmental Protection Technology Co., Ltd, Shandong Guoyu New Materials Co., Ltd, Changzhou Jietai 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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Zibo Xintuo Composite Materials Technology Co., Ltd
Overall Score4.9 / 5
Est. Date2014-05-08
Registered Capital2000K CNY

Zibo Xintuo Composite Materials Technology Co., Ltd., registered at No. 111 Changguo West Road, Zhangdian District, Zibo City, Shandong Province (No. 417 Luzhong Hardware and Electrical City), registered with the Market Supervision and Administration Bureau of Zibo Economic Development Zone, with legal representative Shao Yunyun. Its business scope includes research and development of glass fiber composite materials, cement composite materials, automotive composite materials, glass composite materials, and metal composite materials; Design, sales, and installation of plastic wood, composite fiber wall panels, reinforced composite flooring, composite alloys, composite glass, composite doors and windows furniture, stainless steel composite panels, composite metal ceramics, and composite plastic handicrafts; Sales of indoor and outdoor composite coatings. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Circular Cover Plate, Stainless Steel Sump Cover Plate, Stainless Steel Floor Drain

Top 2
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Sanhe Guanzhong Huayun New Building Materials Factory (Individual Industrial and Commercial Household)
Overall Score4.7 / 5
Est. Date2015-01-04
Registered Capital-

Sanhe Guanzhong Huayun New Building Materials Factory (individual industrial and commercial household), with its registered address in Dongxingzhuang Village, Liqizhuang Town, Sanhe City, Langfang City, Hebei Province, is registered with the Market Supervision Administration of Sanhe City, Langfang City. The legal representative is Huang Zining, and its business scope includes processing and sales of cement products (projects that require approval according to law can only be carried out with the approval of relevant departments).. Core products: Circular Cover Plate, Overboard Board, Cement Pipe

Top 3
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Shanghai Ouning Economic and Trade Development Co., Ltd
Overall Score4.7 / 5
Est. Date2004-03-02
Registered Capital500K CNY

Shanghai Ouning Economic and Trade Development Co., Ltd., with its registered address at Room JT3217, 5th Floor, Building 2, No. 599 Wanzhen Road, Zhenxin New Village Street, Jiading District, Shanghai. The registration authority is Jiading District Market Supervision and Administration Bureau, and the legal representative is Zuo Jie. Its business scope includes general projects such as sales of building materials; Sales of building decoration materials; Sales of metal materials; Wholesale of hardware products; Wholesale of sports goods and equipment; Sales of office supplies; Wholesale of clothing and apparel; Wholesale of shoes and hats; Sales of needle textiles and raw materials; Business agency services; Personal business services; Information consulting services (excluding licensed information 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: Circular Cover Plate, Waterproof Type Tai Cover Sheet, Open Type Tai Cover Sheet

TOP4
Yunnan Guowan Building Materials Co., Ltd
Overall Score4.6 / 5
Est. Date2022-03-28
Registered Capital1000K CNY

Yunnan Guowan Building Materials Co., Ltd., with its registered address at No. 158 Yangguanzhuang Village, Baihanchang Office, Dabanqiao Street Office, Kunming City, Yunnan Province, is registered with the Kunming Municipal Administration for Market Regulation. The legal representative is Huang Hua, and its business scope includes general projects such as cement product manufacturing; Sales of cement products; Retail of hardware products; Sales of building materials; Sales of lightweight building materials; Sales of building waterproofing membrane products; Sales of metal materials; Construction of landscaping and greening projects; General contracting of housing construction and municipal infrastructure projects (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: Circular Cover Plate, Water Grates, Hexagonal Brick

TOP5
Anping County Gangrun Metal Wire Mesh Products Co., Ltd
Overall Score4.6 / 5
Est. Date2014-10-21
Registered Capital5000K CNY

Anping County Gangrun Metal Wire Mesh Products Co., Ltd., with its registered address at No. 257 Xizhaizi Village, Anping County, Hengshui City, Hebei Province, is registered with the Market Supervision Administration of Anping County, Hengshui City. The legal representative is Ma Weichao, and its business scope includes the production and sales of steel grating, steel mesh, guardrail mesh, embossed mesh, punched mesh, stainless steel mesh, wire mesh products, and import and export business. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Circular Cover Plate, Galvanized Steel Grating, Grain Silo Floor Cover

TOP6
Anping Rongou Wire Mesh Manufacturing Co., Ltd
Overall Score4.5 / 5
Est. Date2015-06-29
Registered Capital2000K CNY

Anping Rongou Wire Mesh Manufacturing Co., Ltd., with its registered address located 200 meters south of Liuchang Village, Anping County, Hengshui City, Hebei Province, is registered with the Anping County Market Supervision Administration Bureau of Hengshui City. The legal representative is Wang Haopeng, and its business scope includes the production and sales of wire mesh products, steel grating, Dutch mesh, guardrail mesh, barbed wire, gabion mesh, steel mesh, diamond mesh, and import and export business. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Circular Cover Plate, Punching Foundation Pit Guardrail, Guardrail Mesh

TOP7
Anping County Nord Metal Products Co., Ltd
Overall Score4.5 / 5
Est. Date2012-07-24
Registered Capital1000K CNY

Anping County Nord Metal Products Co., Ltd., with its registered address located 500 meters east of Shiguantun Village, Xiliangwa Township, Anping County. The registration authority is the Anping County Administration for Industry and Commerce in Hengshui City, and the legal representative is Fu Biao. The company's business scope includes the production and sales of guardrails, welding nets, climbing nets, punching nets, and slope protection nets; Sales: gabion mesh, nylon mesh, plastic mesh, steel mesh, steel grating, mesh cloth, barbed wire, wire mesh deep processing products, wire mesh products, and import and export business. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Circular Cover Plate, Drying Tray, Punching Workshop Isolation Net

TOP8
Shandong Huamao Environmental Protection Technology Co., Ltd
Overall Score4.5 / 5
Est. Date2017-08-18
Registered Capital15000K CNY

Shandong Huamao Environmental Protection Technology Co., Ltd., with its registered address located in Xialigozhuang Village, Jinzongzi Town, Anqiu City, Weifang City, Shandong Province, is registered with the Anqiu Market Supervision Administration. The legal representative is Xu Deming, and its business scope includes research and development, production, promotion, and sales of environmental protection equipment, fiberglass products, fiberglass and related products; Sales: Sewage treatment chemicals (excluding hazardous chemicals); Anti corrosion and insulation engineering services, environmental engineering services, mechanical and electrical equipment installation services, pipeline and equipment installation; Import and export of goods and technology. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Circular Cover Plate, Breeding Plant Grille, Cooling Tower Grille

TOP9
Shandong Guoyu New Materials Co., Ltd
Overall Score4.4 / 5
Est. Date2022-04-15
Registered Capital3000K CNY

Shandong Guoyu New Materials Co., Ltd., with its registered address located 300 meters north of Sijiaofang Village Committee, Fengshui Town, Zibo Economic Development Zone, Zibo City, Shandong Province, is registered with the Zibo Economic Development Zone Market Supervision and Administration Bureau. The legal representative is Xu Aifeng, and the business scope includes general projects such as new material technology promotion services; Sales of new metal functional materials; Production of refractory materials; Sales of ecological environment materials; Sales of engineering plastics and synthetic resins; Manufacturing of plastic products; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Sales of graphite and carbon products; Sales of metal materials; Sales of rubber products; Sales of synthetic materials; Import and export of goods; Sales of building materials; Sales of plastic products; Sales of new catalytic materials and additives; Sales of new membrane materials; Sales of building decoration materials; Research and development of new material technology; Manufacturing 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: Circular Cover Plate, Resin Manhole Cover, Cable Trench Cover

TOP10
Changzhou Jietai Environmental Protection Equipment Co., Ltd
Overall Score4.4 / 5
Est. Date2012-06-01
Registered Capital2000K CNY

Changzhou Jietai Environmental Protection Equipment Co., Ltd., located in Wangxia Village Industrial Park, Luoxi Town, Xinbei District, Changzhou City, was established on June 1, 2012. The registration authority is the Administrative Approval Bureau of Changzhou National High tech Industrial Development Zone (Xinbei District), and the legal representative is Chen Jing. Core products: Circular Cover Plate, Waste Gas Treatment Equipment, Sewage Treatment Equipment

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Zibo Xintuo Composite Materials Technology Co., Ltd2014-05-08Circular Cover Plate, Stainless Steel Sump Cover Plate, Stainless Steel Floor Drain2000K CNYSupported
Sanhe Guanzhong Huayun New Building Materials Factory (Individual Industrial and Commercial Household)2015-01-04Circular Cover Plate, Overboard Board, Cement Pipe-Supported
Shanghai Ouning Economic and Trade Development Co., Ltd2004-03-02Circular Cover Plate, Waterproof Type Tai Cover Sheet, Open Type Tai Cover Sheet500K CNYNot Supported
Yunnan Guowan Building Materials Co., Ltd2022-03-28Circular Cover Plate, Water Grates, Hexagonal Brick1000K CNYNot Supported
Anping County Gangrun Metal Wire Mesh Products Co., Ltd2014-10-21Circular Cover Plate, Galvanized Steel Grating, Grain Silo Floor Cover5000K CNYSupported
Anping Rongou Wire Mesh Manufacturing Co., Ltd2015-06-29Circular Cover Plate, Punching Foundation Pit Guardrail, Guardrail Mesh2000K CNYNot Supported
Anping County Nord Metal Products Co., Ltd2012-07-24Circular Cover Plate, Drying Tray, Punching Workshop Isolation Net1000K CNYSupported
Shandong Huamao Environmental Protection Technology Co., Ltd2017-08-18Circular Cover Plate, Breeding Plant Grille, Cooling Tower Grille15000K CNYSupported
Shandong Guoyu New Materials Co., Ltd2022-04-15Circular Cover Plate, Resin Manhole Cover, Cable Trench Cover3000K CNYSupported
Changzhou Jietai Environmental Protection Equipment Co., Ltd2012-06-01Circular Cover Plate, Waste Gas Treatment Equipment, Sewage Treatment Equipment2000K CNYNot Supported

Purchasing Guide

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

  • For procurement requirements that require the use of circular cover plates, it is recommended to prioritize confirming key technical parameters such as diameter, thickness, and material to ensure compatibility with installation structures. Common applications include pipeline sealing, equipment maintenance port coverage, and other scenarios.
  • When selecting suppliers, priority should be given to product compatibility, business qualifications, enterprise activity, industry performance, and companies with industry data support or platform statistical information. Such suppliers can usually provide more stable supply capabilities.
  • In the maintenance scenario of industrial equipment, circular cover plates need to have corrosion resistance or compression resistance characteristics. When purchasing, materials such as galvanized steel plates or engineering plastics can be selected based on specific environmental requirements.
  • The load-bearing requirements for circular cover plates vary greatly among different industries. For example, municipal engineering may focus on anti slip design, while the food processing industry needs to consider easy to clean surface treatment processes.

Knowledge Base

Q

Classification and Application Scenarios of Arched Cover Materials 1、 Material classification Fiberglass reinforced plastic (FRP) Using glass fiber reinforced plastic (FRP) as the main material, it is formed through resin composite technology and has characteristics such as lightweight, high strength, corrosion resistance, and aging resistance. The surface can be designed with anti slip textures or self-cleaning coatings to adapt to complex environmental requirements. Stainless steel/alloy steel

Q

The circular cover plate of a guitar refers to a circular panel located at the top of the guitar, which is usually used to increase the aesthetic appeal of the guitar and protect the internal electronic components of the guitar.

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