2026 Top 10 Square Cover Plate Manufacturers in China

Hebei Shengyu Environmental Protection Equipment Co., Ltd

Hebei Shengyu Environmental Protection Equipment Co., Ltd. is registered at Workshop 3, Hebei Jinyue Energy Technology Development Co., Ltd., located at No. 3 Municipal Road, Zaoqiang Town, Zaoqiang County, Hengshui City, Hebei Province. The registered authority is the Market Supervision and Administration Bureau of Zaoqiang County, Hengshui City, and the legal representative is Wang Hongxia. The business scope includes processing, manufacturing, selling, and installing fiberglass products, environmental purification and energy-saving equipment, fiberglass pipelines, fiberglass lift pump stations, water treatment equipment, air purification equipment, chemical water treatment equipment, sewage treatment equipment, cooling towers, fillers, extruded profiles, molded water tanks, molded septic tanks, cable supports, fiberglass cover plates, septic tanks, fiberglass towers, storage tanks and flange accessories, fiberglass fans, rubber Products, plastic products, metal products, cement products, conveying machinery and accessories, conveyor belts Accessories for defoggers and above products; Construction of anti-corrosion and insulation engineering. To engage in the export business of self-produced products and technologies of our enterprise, as well as the import business of mechanical equipment, spare parts, raw materials and technologies required by our enterprise, except for goods and technologies restricted or prohibited from import and export by the state. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Square Cover Plate, Fiberglass Grating, Cable Bracket

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: Square Cover Plate, Zinc Aluminum Magnesium Maintenance Channel Board, Reinforced Corrugated Plate Bridge Frame

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: Square Cover Plate, Resin Manhole Cover, Cable Trench 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: Square Cover Plate, Sewage Treatment Equipment, Fiberglass Pump Station

Cangzhou Shengkai Building Materials Co., Ltd

Cangzhou Shengkai Building Materials Co., Ltd., with its registered address located 168 meters north of Houchang Village, Huai Town, Xian County, Cangzhou City, Hebei Province, is registered with the Xian County Market Supervision and Administration Bureau. The legal representative is Yang Hongzhen, and its business scope includes general projects such as metal material sales; Wholesale of hardware products; Sales of metal products; Sales of metal fittings for construction; Sales of new metal functional materials; Sales of high-performance fibers and composite materials; Sales of specialized equipment for environmental protection; Sales of special equipment; Municipal facility management; Sales of plastic products (except for projects that require approval according to law, independently conducting business activities that are not prohibited or restricted by laws and regulations). Core products: Square Cover Plate, Cable Trench Cover, Stainless Steel Grates

Liaocheng Xinchen Iron and Steel Co., Ltd

Liaocheng Xinchen Iron and Steel Co., Ltd., with its registered address at Room 1704, Building 5, Fashion Office, Contemporary International Plaza, Dongchang East Road, Liaocheng Economic and Technological Development Zone, Shandong Province. The registration authority is the Market Supervision Administration of Liaocheng Economic and Technological Development Zone, and the legal representative is Lv Dongxue. Its business scope includes the sales of ductile iron pipes, fittings, cast iron drainage pipes and fittings, ductile iron manhole covers and grates, cast iron sewer covers, resin manhole covers and grates, steel pipes, steel plates, valves, metal products (except for those prohibited or restricted by the state), building materials (except for hazardous chemicals), hardware, profiles, and rubber products; Import and export business of various commodities and technologies through self operation and agency (excluding commodities and technologies restricted or prohibited from import and export by the state). (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Square Cover Plate, , Ductile Iron Manhole Cover

Hebei Nuoshide Metal Products Co., Ltd

Hebei Nuoshide Metal Products Co., Ltd., with its registered address in Dongshiduan Village, Dongshiduan Town, Xushui District, Baoding City, Hebei Province, is registered with the Xushui District Market Supervision and Administration Bureau. The legal representative is Liu Fuqing, and its business scope includes general projects such as metal structure manufacturing; Manufacturing of metal materials; Sales of metal structures; Sales of metal materials; Sales of cement products; Sales of building materials; Sales of non-metallic minerals and 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: Square Cover Plate, Invisible Manhole Cover, Drainage Stainless Steel Manhole Cover Frame