Updated Aug 2, 2026 · Public platform & industry data

Aug 2, 2026 Updated

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2026 Top 10 Cover Plate And Trench Cover Manufacturers in China Chongqing

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

The top 10 Cover Plate And Trench Cover manufacturers in Chongqing for 2026 are: Chongqing Luoming Building Materials Co., Ltd, Chongqing Hengxun Materials Co., Ltd, Chongqing Lingyu Hongye Stone Co., Ltd, Chongqing Richang Materials Co., Ltd, Chongqing Chongwo Technology Co., Ltd, Jiaguan Colored Brick Factory in Dadukou District, Chongqing Jinyuyuan Materials Co., Ltd, Chongqing Juquan Stone Co., Ltd, Chongqing Shuze Materials Co., Ltd, Chongqing Saiao Fiberglass Products 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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Chongqing Luoming Building Materials Co., Ltd
Overall Score4.9 / 5
Est. Date2007-09-24
Registered Capital3000K CNY

Chongqing Luoming Building Materials Co., Ltd., with its registered address at No. 13, Building 5, Zone E, No. 581 Nanping East Road, Nan'an District, Chongqing, is registered with the Market Supervision Administration of Nan'an District, Chongqing. The legal representative is Luo Keming, and its business scope includes manufacturing, processing, and selling building materials, decorative materials (excluding hazardous chemicals), hardware, electrical equipment, plastic products, rubber products (excluding hazardous chemicals), manhole covers, water grates, and cement prefabricated parts. Projects prohibited by laws and administrative regulations shall not be operated; projects that are required to be approved or licensed by laws and administrative regulations shall be operated only after approval. Core products: Cover Plate And Trench Cover, Drainage Ditch, Composite Cover Plate

Top 2
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Chongqing Hengxun Materials Co., Ltd
Overall Score4.8 / 5
Est. Date2021-11-22
Registered Capital1000K CNY

Chongqing Hengxun Materials Co., Ltd., with its registered address at No. 308, 3rd Floor, No. 70 Xijiao Road, Yangjiaping Street, Jiulongpo District, Chongqing, is registered with the Market Supervision and Administration Bureau of Jiulongpo District, Chongqing. The legal representative is Huang Dan, and its business scope includes general projects such as wholesale and distribution of hardware products; Retail of hardware products; Sales of metal structures; Sales of fasteners; Sales of valves and plugs; Mold sales; Sales of construction machinery; Operation of wires and cables; Sales of metal materials; Sales of bearings, gears, and transmission components; Sales of building materials; Sales of building decoration materials; Sales of molding materials for casting; Sales of rubber products; Sales of plastic products; Sales of household appliances; Sales of mechanical equipment; Sales of labor protection equipment; Sales of daily necessities; Sales of firefighting equipment; Sales of metal products; Sales of steel reinforcement products for construction; Sales of concrete structural components; Brick and tile sales; Electronic product sales; Wholesale of computer software, hardware, and auxiliary equipment; Wholesale of automotive spare parts; Retail of motorcycles and spare parts; Sales of signs for transportation and public management; Municipal facility management; Software development; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion. (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: Cover Plate And Trench Cover, Cast Iron Water Grate, Fiberglass Grating

Top 3
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Chongqing Lingyu Hongye Stone Co., Ltd
Overall Score4.8 / 5
Est. Date2016-12-08
Registered Capital5000K CNY

Chongqing Lingyu Hongye Stone Co., Ltd., registered at No. 1, Community 10, Leyuan Village, Zouma Town, Jiulongpo District, Chongqing (A2-17 Zouma International Stone Market), registered with the Market Supervision and Administration Bureau of Chongqing High tech Industrial Development Zone Management Committee, with Wang Shanwang as the legal representative. Its business scope includes wholesale and retail of stone, ceramic tiles, building materials and decorative materials (excluding hazardous chemicals), hardware, and metal materials; Processing: stone, stone carving crafts and sculptures; Landscape design; Design, production, and installation of curtain walls; Engage in construction related business (can only operate after obtaining relevant administrative licenses). **Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Cover Plate And Trench Cover, Alien Stone, Dry-Hanging Stone

TOP4
Chongqing Richang Materials Co., Ltd
Overall Score4.7 / 5
Est. Date2012-06-28
Registered Capital500K CNY

Chongqing Richang Materials Co., Ltd., registered at No. 5 Hongshi Avenue, Jiulong Park, Jiulong Town, Jiulongpo District, Chongqing, with the registration authority of the Market Supervision and Administration Bureau of Jiulongpo District, Chongqing. The legal representative is Li Nannan, and the business scope includes the sale of pipes, profiles, plates, pipe fittings, valves, flanges, steel, building materials (excluding hazardous chemicals), insulation materials, metal materials, decorative materials (excluding hazardous chemicals), fire-fighting equipment, mechanical equipment and accessories, hardware, electrical equipment, wires, cables, plastic products, chemical products (excluding hazardous chemicals and precursor chemicals), glass products, ceramic products, packaging materials, plumbing equipment and accessories, steel wire. Rope, water pump and accessories, ship accessories, mechanical and electrical equipment and accessories (excluding cars), asbestos products Instruments and meters, fasteners, laboratory benches, laboratory supplies, daily necessities, lighting products, power tools, refrigeration equipment, environmental protection equipment and materials, furniture, bags and suitcases. **[Projects that require approval by law can only be operated after approval by relevant departments]. Core products: Cover Plate And Trench Cover, Stainless Steel Single Grate, Cast Iron Single Grate

TOP5
Chongqing Chongwo Technology Co., Ltd
Overall Score4.7 / 5
Est. Date2015-09-11
Registered Capital1000K CNY

Chongqing Chongwo Technology Co., Ltd., with its registered address at Room 201-210, No. 115, Long'an Avenue, Tuzhu Town, Shapingba District, Chongqing, is registered by the Market Supervision and Administration Bureau of Shapingba District, Chongqing, and its legal representative is He Junfeng. Its business scope includes licensed projects: information network broadcast video programs, food Internet sales, publication Internet sales, radio and television program production and operation, inspection and testing services, food business (sales of prepackaged food), health food sales, infant formula milk powder sales, food business (sales of bulk food), publication retail, goods import and export, technology import and export, audio-visual product production, audio-visual product reproduction, Electronic publication production (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 from relevant departments) General projects: development and sales of computer software and hardware; Online game development; Design and maintenance of network engineering; Mobile software development; Electronic Commerce; Communication system development and technical services; Development and sales of electronic products and communication equipment (excluding satellite launch and ground receiving equipment); Selling office supplies; Corporate image design, technical services, technology development, technology consulting, technology exchange, technology transfer, technology promotion, information system integration services, information technology consulting services, information system operation and maintenance services, software development, Internet sales (except for the sale of goods requiring permission), machinery and equipment leasing, medical equipment leasing, environmental protection consulting services, health consulting services (excluding diagnosis and treatment services), cultural and entertainment broker services, other cultural and art brokerage agents, computer software and hardware and auxiliary equipment retail, office equipment sales, intellectual property rights services, copyright agents (except for items that must be approved according to law, business activities should be carried out independently according to law with the business license). Core products: Cover Plate And Trench Cover, Fiberglass Tile, Cast Iron Manhole Cover

TOP6
Jiaguan Colored Brick Factory in Dadukou District
Overall Score4.6 / 5
Est. Date2016-04-06
Registered Capital-

Jiaguan Colored Brick Factory in Dadukou District, Chongqing, with its registered address located in Group 6, Hongsheng Village, Tiaodeng Town, Dadukou District. The registration authority is the Market Supervision and Administration Bureau of Dadukou District, Chongqing, and the legal representative is Zhao Jian. Its business scope includes the production and sale of permeable bricks, antique bricks, cement products, and building materials (excluding hazardous chemicals). Core products: Cover Plate And Trench Cover, Bazi Brick, Imitation Stone Ecological Brick

TOP7
Chongqing Jinyuyuan Materials Co., Ltd
Overall Score4.6 / 5
Est. Date2017-09-25
Registered Capital1000K CNY

Chongqing Jinyuyuan Materials Co., Ltd. is registered at D103, Building 1, No. 1909 Funiu Avenue, Dadukou District, Chongqing. The registration authority is the Market Supervision Administration of Dadukou District, Chongqing, and the legal representative is Zhang Daopeng. The business scope includes the sale of water supply ductile iron pipes, drainage cast iron pipes and accessories, steel, building materials (excluding hazardous chemicals), plates, profiles, valves and fittings, metal materials, mechanical and electrical equipment, hardware and electrical equipment, daily necessities (excluding fireworks and firecrackers), and labor protection supplies. **Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Cover Plate And Trench Cover, Anti-Corrosion Steel Pipe, Flange

TOP8
Chongqing Juquan Stone Co., Ltd
Overall Score4.6 / 5
Est. Date2015-10-14
Registered Capital100K CNY

Chongqing Juquan Stone Co., Ltd., with its registered address at No. 88 Jinma Road, Zouma Town, Jiulongpo District, Chongqing, and registered with the Market Supervision and Administration Bureau of Chongqing High tech Industrial Development Zone Management Committee, with Yang Shusheng as its legal representative. Its business scope includes processing, wholesale, and retail of stone materials; Stone care; Sales: Stone care products, building materials, decorative materials (excluding hazardous chemicals), metal materials. **The above business scope requires approval from relevant departments before conducting business activities. Core products: Cover Plate And Trench Cover, Curbstone, Fire Board

TOP9
Chongqing Shuze Materials Co., Ltd
Overall Score4.4 / 5
Est. Date2022-07-22
Registered Capital5000K CNY

Chongqing Shuze Materials Co., Ltd., registered at No. 877-1-23, Gongpingchang Avenue, Jieshi Town, Banan District, Chongqing (self commitment), registered with the Market Supervision and Administration Bureau of Banan District, Chongqing, with Liu Zehui as the legal representative. Its business scope includes general projects: sales of metal materials; Sales of building materials; Mold sales; Sales of building decoration materials; Wholesale of hardware products; Retail of hardware products; Sales of metal fittings for construction; Sales of metal tools; Sales of mechanical parts and components; Operation of wires and cables; Sales of distribution switch control equipment; Installation services for ordinary mechanical equipment. (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: Cover Plate And Trench Cover, Black Rectangular Tube, Electromagnetic Flowmeter

TOP10
Chongqing Saiao Fiberglass Products Co., Ltd
Overall Score4.3 / 5
Est. Date2012-02-02
Registered Capital100K CNY

Chongqing Saiao Fiberglass Products Co., Ltd., with its registered address at 3-16-1-4, No. 2 Cuilian Road, Yubei District, Chongqing, is registered with the Market Supervision Administration of Liangjiang New Area, Chongqing. The legal representative is Mao Changyou, and the business scope includes the sale of fiberglass products (the above business scope is prohibited by national laws and regulations; it cannot be operated without approval).. Core products: Cover Plate And Trench Cover, Claw Machine, Little Train

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Chongqing Luoming Building Materials Co., Ltd2007-09-24Cover Plate And Trench Cover, Drainage Ditch, Composite Cover Plate3000K CNYNot Supported
Chongqing Hengxun Materials Co., Ltd2021-11-22Cover Plate And Trench Cover, Cast Iron Water Grate, Fiberglass Grating1000K CNYNot Supported
Chongqing Lingyu Hongye Stone Co., Ltd2016-12-08Cover Plate And Trench Cover, Alien Stone, Dry-Hanging Stone5000K CNYNot Supported
Chongqing Richang Materials Co., Ltd2012-06-28Cover Plate And Trench Cover, Stainless Steel Single Grate, Cast Iron Single Grate500K CNYSupported
Chongqing Chongwo Technology Co., Ltd2015-09-11Cover Plate And Trench Cover, Fiberglass Tile, Cast Iron Manhole Cover1000K CNYSupported
Jiaguan Colored Brick Factory in Dadukou District2016-04-06Cover Plate And Trench Cover, Bazi Brick, Imitation Stone Ecological Brick-Supported
Chongqing Jinyuyuan Materials Co., Ltd2017-09-25Cover Plate And Trench Cover, Anti-Corrosion Steel Pipe, Flange1000K CNYSupported
Chongqing Juquan Stone Co., Ltd2015-10-14Cover Plate And Trench Cover, Curbstone, Fire Board100K CNYSupported
Chongqing Shuze Materials Co., Ltd2022-07-22Cover Plate And Trench Cover, Black Rectangular Tube, Electromagnetic Flowmeter5000K CNYSupported
Chongqing Saiao Fiberglass Products Co., Ltd2012-02-02Cover Plate And Trench Cover, Claw Machine, Little Train100K CNYSupported

Purchasing Guide

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

  • When choosing the supply of cover plates and trench covers, it is recommended that enterprises match the actual application scenarios based on key technical parameters such as load-bearing grade and material type (such as cast iron, composite materials). For example, municipal roads need to focus on compressive strength, while industrial parks need to consider 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 for cover and groove cover products.
  • For different usage scenarios such as drainage systems or cable trenches, the size specifications of cover plates and trench covers (such as wellhead diameter and gap width) should strictly correspond to the on-site construction requirements to avoid installation adaptation issues in the later stage.
  • In areas with high-frequency traffic in industrial plants, it is recommended to purchase trench cover products with anti slip patterns or reinforced rib designs. Such detailed designs can effectively extend the service life and reduce maintenance costs.

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