2026 Top 10 Pneumatic Circular Air Door Manufacturers in China

Middling coal Industry and Mining Materials Group Co., Ltd

Middling coal Industry and Mining Materials Group Co., Ltd., with its registered address at No. 11, North Kaiyuan Road, High tech Zone, Jining City, is registered by the Market Supervision and Administration Bureau of Jining High tech Industrial Development Zone, and its legal representative is Qu Qing. Its business scope includes general projects: special equipment manufacturing (excluding licensed professional equipment manufacturing); Sales of mechanical equipment; Mining machinery manufacturing; Sales of mining machinery; Mechanical parts and component processing; Sales of mechanical parts and components; Manufacturing of mechanical and electrical equipment; Sales of electrical and mechanical equipment; Research and development of intelligent robots; Sales of intelligent robots; Manufacturing of intelligent unmanned aerial vehicles; Sales of intelligent unmanned aerial vehicles; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Manufacturing of distribution switch control equipment; Sales of distribution switch control equipment; Manufacturing of instruments and meters; Sales of instruments and meters; Manufacturing of electronic vacuum devices; Sales of electronic vacuum devices; Manufacturing of electronic components; Retail of electronic components; Manufacturing of high-speed rail equipment and accessories; Sales of high-speed rail equipment and accessories; Sales of railway transportation infrastructure equipment; Electronic product sales; Sales of chemical products (excluding licensed chemical products); Sales of lubricating oil; Sales of household appliances; Sales of metal products; Manufacturing of non-metallic mineral products; Sales of mobile communication devices; Sales of IoT devices; Wholesale of hardware products; Retail of hardware products; Sales of labor protection equipment; Sales of building materials; Sales of metal materials; Sales of agricultural and sideline products; Research and development of emerging energy technologies; Specialized equipment repair; Mechanical equipment leasing; Software development; Software sales; Information system integration services; Intelligent control system integration; Domestic cargo transportation agency (except for projects that need to be approved according to law, independently carry out business activities according to law with the business license): Internet information service; Import and export of goods; Technology import and export; Manufacturing of railway transportation infrastructure equipment; 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, and specific business projects are subject to the approval results). Core products: Pneumatic Circular Air Door, Supporting Equipment, Security And Rescue Equipment

Shandong Zhonglu Heavy Industry Co., Ltd

Shandong Zhonglu Heavy Industry Co., Ltd., with its registered address at No. 90 Fuxin Road, Fuxin Street, Fushan District, Yantai City, Shandong Province, is registered with the Market Supervision and Administration Bureau of Fushan District, Yantai City. Its legal representative is Ma Ye, and its business scope includes general projects such as the manufacturing of construction machinery; Manufacturing of metal structures; Manufacturing of new energy prime mover equipment; CNC machine tool manufacturing; Bearing manufacturing; Agricultural machinery manufacturing; Sales of mechanical and electrical equipment; Sales of new energy vehicles as a whole; Container manufacturing; General equipment manufacturing (excluding special equipment manufacturing); Manufacturing of metal materials; Sales of construction machinery; Sales of special equipment; Steel rolling processing; Manufacturing of specialized equipment for environmental protection; Manufacturing of material handling equipment; Sales of metal structures; Manufacturing of metal cutting and welding equipment; Specialized equipment manufacturing (excluding licensed specialized equipment manufacturing); Sales of high-speed precision gear transmission devices; Manufacturing of specialized machinery for the production of building materials; Mechanical parts and component processing; Sales of mechanical equipment; Mining machinery manufacturing; Manufacturing of metal processing machinery; Industrial robot manufacturing; Sales of mechanical parts and components; Manufacturing of general components; Manufacturing of electronic components; Sales of mining machinery; 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 projects: construction engineering design; Construction project construction. (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: Pneumatic Circular Air Door, Steel, Security And Rescue Equipment

Shandong Mining and Mining Equipment Co., Ltd

Shandong Mining and Mining Equipment Co., Ltd., with its registered address at Workshop 2, Northwest Gate South, Zone A, Seventh Industrial Park, Huangtun Street, High tech Zone, Jining City, Shandong Province, is registered with the Market Supervision and Administration Bureau of Jining High tech Industrial Development Zone. The legal representative is Shao Pengcheng, and its business scope includes general projects such as mining machinery manufacturing; Sales of mining machinery; Sales of mechanical parts and components; Sales of railway transportation equipment; Sales of hydraulic power machinery and components; Sales of construction machinery; Sales of specialized machinery for agriculture, forestry, animal husbandry, animal husbandry, and fisheries; Sales of agricultural, forestry, animal husbandry and fishery machinery accessories; Sales of specialized equipment for environmental protection; Sales of labor protection equipment; Sales of firefighting equipment; Sales of security equipment; Sales of instruments and meters; Sales of rubber products; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Installation services for ordinary mechanical equipment; Wholesale of computer software, hardware, and auxiliary equipment; Retail of computer software, hardware, and auxiliary equipment; Professional design services; Manufacturing of hydraulic power machinery and components; Manufacturing of construction machinery; Manufacturing of specialized machinery for agriculture, forestry, animal husbandry, and fisheries; Specialized equipment manufacturing (excluding licensed specialized equipment manufacturing); Manufacturing of specialized equipment for environmental protection; Production of labor protection equipment; Manufacturing of security equipment; Manufacturing of metal products for safety and firefighting purposes; Manufacturing of instruments and meters; Rubber product manufacturing. (In addition to the projects that need to be approved according to law, business activities shall be carried out independently according to law with the business license) Permitted projects: Internet information services; 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: Pneumatic Circular Air Door, Instrumentation And Meters, Idler Roller

Shandong Shenhua Machinery Manufacturing Co., Ltd

Shandong Shenhua Machinery Manufacturing Co., Ltd., with its registered address at No. 11 Kaiyuan Road, Jining High tech Zone, is registered with the Market Supervision and Administration Bureau of Jining High tech Industrial Development Zone. The legal representative is Han Yong, and its business scope includes general projects: manufacturing of construction machinery; Sales of construction machinery; Manufacturing of specialized equipment for geological exploration; Specialized equipment manufacturing (excluding licensed specialized equipment manufacturing); Sales of specialized equipment for geological exploration; Sales of rail transit engineering machinery and components; Mechanical equipment research and development; Sales of mechanical equipment; Mining machinery manufacturing; Sales of mining machinery; Manufacturing of hydraulic power machinery and components; Sales of hydraulic power machinery and components; Sales of special equipment; Sales of metal materials; Sales of steel reinforcement products for construction; Sales of new energy vehicles as a whole; Sales of generators and generator sets; General equipment manufacturing (excluding special equipment manufacturing); Motor manufacturing; Sales of building materials; Manufacturing of material handling equipment; Sales of material handling equipment; Import and export of goods; Technology import and export. (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: Pneumatic Circular Air Door, Drainage Equipment, Spraying Equipment

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: Pneumatic Circular Air Door, Compensator, Air Door

Cangzhou Zhongnuo Machinery Manufacturing Co., Ltd

Cangzhou Zhongnuo Machinery Manufacturing Co., Ltd. is registered at No. 1 Road, Industrial Zone, Botou City, Liduli Village, Waliwang Town, Botou City. The registration authority is Botou Market Supervision Administration Bureau, and the legal representative is Yang Ping. The business scope includes the manufacturing of environmental protection special equipment. Dust removal equipment and accessories, complete sets of conveying equipment and accessories, screw conveyors, shut-off fans, exhaust gas treatment equipment, corrugated pipe compensators, metal hoses, valves and pipeline accessories, protective equipment, filters, hardware tools, boiler accessories, production, processing, installation, and sales of mechanical and electrical products; Import and export of goods. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Pneumatic Circular Air Door, Scraper Conveyor, Bucket Elevator

Hebei Bolin Environmental Protection Technology Co., Ltd

150 meters south of Zhangsan Overpass in Beihuan, Botou Economic Development Zone, Cangzhou City, Hebei Province

Hebei Bolin Environmental Protection Technology Co., Ltd. is located 150 meters south of Zhangsan Overpass in the North Ring Road of Botou Economic Development Zone, Cangzhou City, Hebei Province. It was established on December 16, 2020, with the registration authority of Botou Market Supervision Administration and the legal representative being Gao Jingya. Core products: Pneumatic Circular Air Door, Carbon Steel Turbine Seal, Expansion Joint Compensator