2026 Top 10 Electric Plug-In Door Manufacturers in China

Shandong Zhongzhong Intelligent Technology Co., Ltd

Shandong Zhongzhong Intelligent Technology Co., Ltd., with its registered address at Block A, 4th Floor, Xieying Technology Building, No. 18 Jinyu Road, Xianying Street, Rencheng District, Jining City, Shandong Province, is registered with the Market Supervision Administration of Rencheng District, Jining City. The legal representative is Xiao Shiyue, and the business scope includes general projects such as engineering and technical research and experimental development; Mining machinery manufacturing; Sales of mining machinery; Specialized equipment manufacturing (excluding licensed specialized equipment manufacturing); Sales of mechanical equipment; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Software development; Software sales; Sales of intelligent instruments and meters; Manufacturing of intelligent instruments and meters; Sales of intelligent basic manufacturing equipment; Intelligent basic manufacturing equipment manufacturing; Sales of railway transportation infrastructure equipment; Import and export of goods; Technology import and export. (Except for projects that require approval according to law, business activities can be carried out independently based on the business license) Licensed project: Manufacturing of railway transportation infrastructure equipment. (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: Electric Plug-In Door, Lifting Equipment, Ventilation And Safety Equipment

Xinhe County Yunxing Water Conservancy Machinery Factory

Yunxing Water Conservancy Machinery Factory in Xinhe County, Xingtai City, Hebei Province, with its registered address in Baishenshou Village, Xinhe County. The registration authority is the Xinhe County Market Supervision and Administration Bureau, and the legal representative is Dong Jianli. Its business scope includes the production, sales, installation, and maintenance of hoists, gates, gates, trash racks, cleaning machines, conveyors, electric hoists, hydraulic dams, steel dams, rubber dams, flap doors, pressure steel pipes, valves, hydraulic equipment, oil filters, gabion nets, corrugated pipes, and hydraulic metal structural components; Sales of environmental protection equipment, cranes, control cabinets, axial flow pumps, mixed flow pumps, submersible pumps, motors, cables, rubber waterstops, closed cell foam plates, bridge bearings, bridge expansion joints, geotextiles, geomembranes, and FRP products; Anti corrosion engineering construction, water conservancy and hydropower engineering, building construction engineering, municipal engineering, building decoration engineering, earthwork engineering, foundation and foundation engineering, mechanical and electrical equipment installation engineering, landscaping engineering. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Electric Plug-In Door, Water Blocking Valve, Slap The Door

Jiangsu Chengzhu Machinery Technology Co., Ltd

Jiangsu Chengzhu Machinery Technology Co., Ltd., with its registered address at 9A Daxing South Road, Industrial Park, Hede Town, Sheyang County, is registered with the Sheyang County Administrative Approval Bureau and represented by Gao Jianxiang. Its business scope includes research and development, manufacturing, and sales of power machinery parts, chemical machinery parts, and environmental protection equipment; Environmental engineering design and construction. Wholesale of metal materials; (For projects that require approval by law, business activities can only be carried out after approval by relevant departments) General projects: wholesale of metal materials; Manufacturing of mechanical and electrical equipment; Sales of electrical equipment; General equipment manufacturing (excluding special equipment manufacturing); Sales of pipeline transportation equipment; Manufacturing of metal structures; Sales of metal structures; Manufacturing of metal materials; Research and development of metal products; Manufacturing of metal chains and other metal products; Sales of metal chains and other metal products; Sales of metal products (except for projects that require approval according to law, conducting business activities independently based on the business license in accordance with the law). Core products: Electric Plug-In Door, Baffle Gate, Support Pipe Bracket

Hebei Bolin Environmental Protection Technology Co., Ltd

Hebei Bolin Environmental Protection Technology Co., Ltd., with its registered address located 150 meters south of Zhangsan Overpass in Beihuan, Botou Economic Development Zone, Cangzhou City, Hebei Province, is registered with the Botou Market Supervision Administration Bureau and represented by Gao Jingya as its legal representative. Its business scope includes general projects such as environmental protection technology promotion services. Research and development, manufacturing, maintenance, and sales of dust removal equipment and accessories, cloth bags, bag cages, unloaders, air doors, baffle doors, ventilation butterfly valves, exhaust gas treatment equipment, supports and hangers, manholes, explosion-proof valves, solenoid valves, metal compensators, sleeve compensators, metal hoses, non-metal compensators, conveying equipment and accessories, plug valves, and flap valves. (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: Electric Plug-In Door, Manhole, Metal Compensator

Hebei Shengyu Hydraulic Machinery Co., Ltd

Hebei Shengyu Hydraulic Machinery Co., Ltd., registered in Yingtai Village, Ningjin County, with the registration authority of Ningjin County Market Supervision Administration and the legal representative of Li Jianhao, engages in the production, sales, installation, and maintenance of hoisting machines, gates, steel dams, conveying equipment, environmental protection complete sets of equipment, valves, trash racks, cleaning machines, rubber water stops, pressure steel pipes, water pumps, and grilles; Production and sales of intelligent integrated valves, automated measurement and control devices, cranes, gantry cranes, stainless steel gates, hydraulic dams, hinge dams, air shield dams, segmented throttling dams, flap doors, and Bacher slots; Water conservancy and hydropower engineering, municipal public works, anti-corrosion engineering, construction; Manufacturing and installation, anti-corrosion and maintenance of hydraulic metal structures; Sales of complete hydraulic equipment, lifting equipment, rubber products, polystyrene foam board, canal anti-seepage plastic film, geotextile, geomembrane, high and low voltage power distribution equipment, motors, cables, wires, bridge supports, bridge expansion joints, low voltage water pipelines, glass fiber reinforced plastic products (business activities can only be carried out after the approval of relevant departments for projects that need to be approved according to law)**. Core products: Electric Plug-In Door, Screw Type Opening And Closing Machine, Steel Dam

Hebei Cangnuo Environmental Protection Equipment Co., Ltd

Hebei Cangnuo Environmental Protection Equipment Co., Ltd. is registered at 50 meters west of the intersection of Houbachi Village, Waliwang Town, Botou City, Cangzhou City, Hebei Province. The registration authority is Botou Market Supervision Administration Bureau, and the legal representative is Jia Wanxin. The business scope includes the manufacturing of specialized environmental protection equipment. Production, sales, installation, and maintenance of dust removal equipment and accessories, desulfurization and denitrification equipment and accessories, exhaust gas treatment equipment, mining machinery equipment, sewage treatment equipment, catalytic combustion equipment, photo oxygen plasma purification equipment, oil fume purification equipment, air purification equipment, conveying equipment and accessories, dust removal bags, skeletons, pipelines, valves. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Electric Plug-In Door, Activated Carbon Adsorption Box, Scraper Conveyor

Hebei Qingrun Environmental Protection Equipment Co., Ltd

Hebei Qingrun Environmental Protection Equipment Co., Ltd., registered in Dadong Village, Siying Township, Botou City, Cangzhou City, Hebei Province, with the Market Supervision Administration of Botou City as the registration authority and Jia Dong as the legal representative, is engaged in the design, research and development, production, sales, installation, and maintenance of environmental protection equipment, conveying equipment, desulfurization and denitrification equipment, catalysts, electrical (control) equipment, steel structural components, and dust removal accessories; Installation and construction of biogas engineering, waste gas and wastewater treatment engineering (projects that require approval by law can only be carried out after approval by relevant departments). Core products: Electric Plug-In Door, Screw Conveyor, Bucket Elevator