Updated Sep 9, 2026 · Public platform & industry data

Sep 9, 2026 Updated

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

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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 Yunnan for 2026 are: Kunming Ouju Fiberglass Co., Ltd, Chuxiong Youlinsheng Technology Co., Ltd, Qujing Huanju New Material Technology Co., Ltd, Shuoxin Cement Products Business Department, Kunming Airport Economic Development Zone, Yunnan Bojia Industry and Trade Co., Ltd, Ganxing Building Materials Business Department, Kunming Economic and Technological Development Zone, Kunming Glaris Transportation Engineering Co., Ltd, Yunnan Tengxiang Municipal Facilities Management Co., Ltd, Yunnan Banghong Import and Export Trading Co., Ltd, Yunnan Hengtai Industry and Trade 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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Kunming Ouju Fiberglass Co., Ltd
Overall Score4.9 / 5
Est. Date2016-06-24
Registered Capital1000K CNY

Kunming Ouju Fiberglass Co., Ltd., registered at No. 2, 27th Floor, Yunnan World Expo Building, No. 45 Tuodong Road, Guandu District, Kunming City, Yunnan Province, China. The registration authority is the Guandu District Market Supervision and Administration Bureau, and the legal representative is Guo Qiankun. The business scope includes the sales of fiberglass products, building materials, and Wujin Jiaodian (projects that require approval by law can only be carried out after approval by relevant departments). Core products: Cover Plate And Trench Cover, Fiberglass Cable Tray, Steel Grating

Top 2
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Chuxiong Youlinsheng Technology Co., Ltd
Overall Score4.8 / 5
Est. Date2018-07-12
Registered Capital20000K CNY

Chuxiong Youlinsheng Technology Co., Ltd., with its registered address at Fumin Industrial Park, Lucheng Town, Chuxiong City, Chuxiong Yi Autonomous Prefecture, Yunnan Province, is registered with the Market Supervision Administration of Chuxiong City. The legal representative is Rong Yuexin, and its business scope includes general projects such as research and development of new material technology; Research and development of resource recycling technology; Research and development of construction waste recycling technology; Mechanical equipment research and development; Manufacturing of new building materials (excluding hazardous chemicals); Manufacturing of cement products; Manufacturing of lightweight building materials; Paint manufacturing (excluding hazardous chemicals); Manufacturing of concrete structural components; Manufacturing of non-metallic mineral products; General equipment manufacturing (excluding special equipment manufacturing); Sales of cement products; Sales of concrete structural components; Sales of lightweight building materials; Sales of coatings (excluding hazardous chemicals); Sales of building materials; Sales of non-metallic minerals and products; Sales of mechanical equipment; Import and export of goods; Technology import and export (except for projects that require approval according to law, business activities are carried out independently based on the business license in accordance with the law).. Core products: Cover Plate And Trench Cover, Tunnel Fireproof Coating,

Top 3
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Qujing Huanju New Material Technology Co., Ltd
Overall Score4.8 / 5
Est. Date2023-05-10
Registered Capital10000K CNY

Qujing Huanju New Material Technology Co., Ltd., with its registered address located on the third floor of the Transportation Management Office at No. 49 Wanghai Road, Xiping Street, Zhanyi District, Qujing City, Yunnan Province, is registered with the Zhanyi District Market Supervision and Administration Bureau. The legal representative is Rong Qiying, and its business scope includes general projects such as research and development of new material technology; Manufacturing of lightweight building materials; Manufacturing of non-metallic mineral products; Manufacturing of graphite and carbon products; Paint manufacturing (excluding hazardous chemicals); Manufacturing of building waterproofing membrane products; Manufacturing of photovoltaic equipment and components; Sales of building waterproofing membrane products; Sales of coatings (excluding hazardous chemicals); Sales of photovoltaic equipment and components; Sales of non-metallic minerals and products; Sales of graphite and carbon products; Sales of lightweight building 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: Cover Plate And Trench Cover, Highway Ditch Cover Plate, Seismic Bracing

TOP4
Shuoxin Cement Products Business Department, Kunming Airport Economic Development Zone
Overall Score4.7 / 5
Est. Date2023-02-22
Registered Capital-

Shuoxin Cement Products Business Department, Kunming Airport Economic Development Zone, with registered address at No. 158 Yangguanzhuang Village, Baihanchang Community Neighborhood Committee, Dabanqiao Street Office, Kunming City, Yunnan Province. The registration authority is Kunming Market Supervision and Administration Bureau, and the legal representative is Li Yuliang. The business scope includes general projects: sales of building materials; Sales of building blocks; Manufacturing of cement products; Sales of cement products (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: Cover Plate And Trench Cover, Tactile Paving Brick, Hundred Meter Pile

TOP5
Yunnan Bojia Industry and Trade Co., Ltd
Overall Score4.7 / 5
Est. Date2020-10-29
Registered Capital1000K CNY

Yunnan Bojia Industry and Trade Co., Ltd., registered at No. 17, Building 3, Phase II, Bomei Building Materials City, Guandu District, Kunming Area, China (Yunnan) Pilot Free Trade Zone, registered with the Guandu District Market Supervision and Administration Bureau, with Hu Yunlong as the legal representative. Its business scope includes general projects: sales of building materials; Wholesale of hardware products; Retail of hardware products; Manufacturing of metal structures; Manufacturing of architectural decoration, plumbing components, and other metal products for building use; Sales of glass fiber reinforced plastic products; Rolling and processing of non-ferrous metals; Metal cutting processing services; Metal surface treatment and heat treatment processing (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: Cover Plate And Trench Cover, Pvc Abs , Composite Manhole Cover

TOP6
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: Cover Plate And Trench Cover, I-Beam, Spiral Tube

TOP7
Kunming Glaris Transportation Engineering Co., Ltd
Overall Score4.6 / 5
Est. Date2017-12-25
Registered Capital500K CNY

Kunming Glaris Transportation Engineering Co., Ltd., with its registered address at No. 1104, 11th Floor, Building 5, Dingjie Xingdu Hui Business Center, Xiaobanqiao Street Office, Guandu District, Kunming City, Yunnan Province, is registered with the Guandu District Market Supervision and Administration Bureau. The legal representative is Zhao Zhibing, and its business scope includes the design and construction of road guardrail engineering, environmental sanitation facilities engineering, bridge engineering, highway pavement engineering, municipal public works, and environmental protection engineering (none of the above business scope involves hazardous chemical construction projects); Design, production, installation, and sales of identification and signage; Sales of metal products, building materials, security equipment, electromechanical equipment, and storage equipment; Pipeline construction, construction, and installation (excluding the use of long-distance pipelines to transport hazardous chemicals); Import and export business of goods and technology (excluding hazardous chemicals, ammonia related refrigeration industry, and nationally restricted prohibited products) (not allowed to engage in restricted or prohibited industries in the industrial policies of the Economic Development Zone) (projects that require approval by law can only be carried out after approval by relevant departments). Core products: Cover Plate And Trench Cover, Bathroom, Anti Corrosion Wooden Railing Boardwalk

TOP8
Yunnan Tengxiang Municipal Facilities Management Co., Ltd
Overall Score4.6 / 5
Est. Date2023-08-22
Registered Capital5000K CNY

Yunnan Tengxiang Municipal Facilities Management Co., Ltd., with its registered address at No. 14-1, Building 7, Gate 1, Bomei Building Materials City, No. 900 Yulong Road, Guanshang Community Neighborhood Committee, Guandu District, Kunming Area, China (Yunnan) Pilot Free Trade Zone. The registered authority is Guandu District Market Supervision and Administration Bureau, and the legal representative is Wang Yao. Its business scope includes general projects such as municipal facility management; Sales of building materials; Wholesale of hardware products; Manufacturing of cement products; Sales of cement products; Manufacturing of specialized equipment for environmental protection; Sales of specialized equipment for environmental protection; Manufacturing of metal materials; Sales of metal materials; Manufacturing of glass fiber reinforced plastic products; Sales of glass fiber reinforced plastic products; Black metal casting; Glass manufacturing; Sales of firefighting equipment; Manufacturing of technical glass products; Sales of metal wire ropes and their products; Steel rolling processing; Sales of metal structures; Promotion services for new material technology; Manufacturing of metal structures; Rubber product manufacturing; Sales of rubber products; Manufacturing of metal signs for transportation and public management; Sales of signs for transportation and public management. (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, Square Manhole Cover,

TOP9
Yunnan Banghong Import and Export Trading Co., Ltd
Overall Score4.4 / 5
Est. Date2021-12-06
Registered Capital2000K CNY

Yunnan Banghong Import and Export Trading Co., Ltd., registered at Room 211, 2nd Floor, Building B, Pan Asia Logistics Center, Xiaoluoyang Community, Luoyang Street Office, Economic Development Zone, Kunming Area, China (Yunnan) Pilot Free Trade Zone, registered with Kunming Market Supervision and Administration Bureau, with Zou Guilong as the legal representative. Its business scope includes general projects: import and export of goods; Technology import and export; Domestic freight forwarding agent; Domestic trade agency; Sales of office equipment; Sales of mechanical equipment; Sales of metal materials; Sales of metal products; Sales of building materials; Sales of communication equipment; Sales of daily necessities; Sales of steel reinforcement products for construction; Sales of metal structures (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: Cover Plate And Trench Cover, Wooden Formwork, Rubber Material

TOP10
Yunnan Hengtai Industry and Trade Co., Ltd
Overall Score4.3 / 5
Est. Date2021-07-21
Registered Capital10000K CNY

Yunnan Hengtai Industry and Trade Co., Ltd., registered at No. 1-10, Building 14, East District, Dongju Building Materials City, Xiaobanqiao Street Office, Guandu District, Kunming Area, China (Yunnan) Pilot Free Trade Zone, registered with the Guandu District Market Supervision and Administration Bureau, with Xu Changhong as the legal representative. Its business scope includes general projects such as municipal facility management; Manufacturing of specialized equipment for environmental protection; Sales of specialized equipment for environmental protection; Manufacturing of metal materials; Sales of metal materials; Wholesale of hardware products; Manufacturing of cement products; Sales of cement products; Manufacturing of glass fiber reinforced plastic products; Sales of glass fiber reinforced plastic products; Black metal casting; Glass manufacturing; Sales of technical glass products; Sales of metal wire ropes and their products; Steel rolling processing; Sales of metal structures; Sales of building materials; Promotion services for new material technology (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: Cover Plate And Trench Cover, Circular Ductile Iron Manhole Cover, Septic Tank

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Kunming Ouju Fiberglass Co., Ltd2016-06-24Cover Plate And Trench Cover, Fiberglass Cable Tray, Steel Grating1000K CNYSupported
Chuxiong Youlinsheng Technology Co., Ltd2018-07-12Cover Plate And Trench Cover, Tunnel Fireproof Coating, 20000K CNYNot Supported
Qujing Huanju New Material Technology Co., Ltd2023-05-10Cover Plate And Trench Cover, Highway Ditch Cover Plate, Seismic Bracing10000K CNYNot Supported
Shuoxin Cement Products Business Department, Kunming Airport Economic Development Zone2023-02-22Cover Plate And Trench Cover, Tactile Paving Brick, Hundred Meter Pile-Supported
Yunnan Bojia Industry and Trade Co., Ltd2020-10-29Cover Plate And Trench Cover, Pvc Abs , Composite Manhole Cover1000K CNYSupported
Ganxing Building Materials Business Department, Kunming Economic and Technological Development Zone2020-12-10Cover Plate And Trench Cover, I-Beam, Spiral Tube-Supported
Kunming Glaris Transportation Engineering Co., Ltd2017-12-25Cover Plate And Trench Cover, Bathroom, Anti Corrosion Wooden Railing Boardwalk500K CNYSupported
Yunnan Tengxiang Municipal Facilities Management Co., Ltd2023-08-22Cover Plate And Trench Cover, Square Manhole Cover, 5000K CNYSupported
Yunnan Banghong Import and Export Trading Co., Ltd2021-12-06Cover Plate And Trench Cover, Wooden Formwork, Rubber Material2000K CNYSupported
Yunnan Hengtai Industry and Trade Co., Ltd2021-07-21Cover Plate And Trench Cover, Circular Ductile Iron Manhole Cover, Septic Tank10000K 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