2026 Top 10 Circular Cover Plate Manufacturers in China

Zibo Hengyue Road Facilities Maintenance Co., Ltd

Zibo Hengyue Road Facilities Maintenance Co., Ltd., registered at the Carpet Factory in Huantai County, registered with the Market Supervision and Administration Bureau of Huantai County, Zibo City, with Xing Hantao as its legal representative. Its business scope includes the production, installation, and maintenance of street lamps, billboards, road facilities, and transportation facilities; Design and install fountains; Production, sales, installation, technical consultation, and technical services of composite cover plates, water grates, cable trenches, RPC cover plates, cable supports, identification plates, and molds; Sales of building materials, hardware and electrical equipment, decorative materials, electrical equipment, mechanical equipment, and chemical products (excluding hazardous chemicals); Lighting engineering, power engineering, door and window engineering; Construction labor subcontracting. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Circular Cover Plate, Resin Manhole Cover, Cable Trench Cover

Anping County Gangrun Metal Wire Mesh Products Co., Ltd

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, Aluminum Grating, Grain Silo Floor Cover

Xinjiang Mingbo Composite Materials Co., Ltd

No. 1-05 Qinghu Mingcheng Market, No. 350 Mengjin South Road, 25th District, Wujiaqu City, Xinjiang

Xinjiang Mingbo Composite Materials Co., Ltd. is located at No. 1-05 Qinghu Mingcheng Market, No. 350 Mengjin South Road, 25th District, Wujiaqu City, Xinjiang. It was established on February 13, 2026 and registered with the Market Supervision and Administration Bureau of the Sixth Division of the Xinjiang Production and Construction Corps. The legal representative is Kangyang. Core products: Circular Cover Plate, Sewage Treatment Equipment, Fiberglass Pump Station

Zaoqiang Haoyang Machinery Manufacturing Co., Ltd

Zaoqiang Haoyang Machinery Manufacturing Co., Ltd., with its registered address located on the west side of Wuguan Road, Matun Town, Zaoqiang County, Hengshui City, Hebei Province, is registered with the Market Supervision Administration of Zaoqiang County, Hengshui City. The legal representative is Zhang Yujie, and the business scope includes general projects such as metal cutting and welding equipment manufacturing; Sales of metal cutting and welding equipment; Manufacturing of plastic products; Sales of plastic products; Manufacturing of glass fiber reinforced plastic products; Sales of glass fiber reinforced plastic products; Manufacturing of metal structures; Sales of metal structures; Sales of communication equipment. (Except for projects that require approval according to law, business activities can be carried out independently based on the business license) Licensed project: Road freight transportation (excluding dangerous goods). (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: Circular Cover Plate, Zinc Aluminum Magnesium Maintenance Channel Board, Reinforced Corrugated Plate Bridge Frame

Shandong Bohui Iron and Steel Co., Ltd

Shandong Bohui Iron and Steel Co., Ltd., registered at No. 21, Block A, Xinglong Steel Pipe City, East End of Liaohe Road, Liaocheng Economic and Technological Development Zone, Shandong Province, registered with the Market Supervision and Administration Bureau of Liaocheng Economic and Technological Development Zone, with Zhao Ranran as the legal representative. Its business scope includes the sales of ductile iron pipes, fittings, ductile iron products, steel pipes, steel plates, building materials, profiles, hardware, chemical products (excluding hazardous chemicals, flammable and explosive materials, and easily produced drugs), and rubber products; Steel pipe processing and sales. Import and export of goods or technology (excluding goods and technology prohibited by the state or subject to administrative approval). (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Circular Cover Plate, Ductile Iron Manhole Cover, Grate

Shandong Huamao Environmental Protection Technology Co., Ltd

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, Laying Sand Anti-Skid Strips, Breeding Plant Grille

Shandong Baogai New Material Technology Co., Ltd

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: Circular Cover Plate, Cable Trench Cover, Composite Cover Plate