Updated Oct 27, 2026 · Public platform & industry data

Oct 27, 2026 Updated

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2026 Top 10 Fireproof Flexible Joint Manufacturers in China

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Top-rated Fireproof Flexible Joint suppliers, How to choose a Fireproof Flexible Joint manufacturer, Best Fireproof Flexible Joint companies in China

The top 10 Fireproof Flexible Joint manufacturers in China for 2026 are: Shandong Zhongtan Intelligent Equipment Co., Ltd, Yanshan Zhuodi Machine Tool Accessories Co., Ltd, Sichuan Hanpin Shitong Technology Co., Ltd, Changzhou Yutuo Machine Tool Accessories Co., Ltd, Guangzhou Yingyi Metal Products Co., Ltd, Langfang Kangjie Ventilation Materials Co., Ltd, Langfang Xijun Energy saving Technology Co., Ltd, Dezhou Hongjun Electromechanical Equipment Co., Ltd, Dezhou Xinrui Air Conditioning Equipment Co., Ltd, Wuxi Bokang Canvas Weaving 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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Shandong Zhongtan Intelligent Equipment Co., Ltd
Overall Score4.9 / 5
Est. Date2022-03-01
Registered Capital10000K CNY

Shandong Zhongtan Intelligent Equipment Co., Ltd., with its registered address at Room 810, Xieying Science and Technology Building, Xianying Street, Rencheng District, Jining City, Shandong Province, is registered with the Market Supervision Administration of Rencheng District, Jining City. The legal representative is Xi Laiwei, and the business scope includes general projects: manufacturing of intelligent basic manufacturing equipment; Mining machinery manufacturing; Sales of mining machinery; Specialized equipment manufacturing (excluding licensed specialized equipment manufacturing); Sales of mechanical equipment; Engineering and technical research and experimental development; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Software development; Software sales; Manufacturing of intelligent instruments and meters; Sales of intelligent basic manufacturing equipment; Sales of railway transportation infrastructure equipment; Import and export of goods; Technology import and export; Sales of photovoltaic equipment and components; Wood sales; Wood processing. (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: Fireproof Flexible Joint, Large-Scale Equipment, Support Category

Top 2
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Yanshan Zhuodi Machine Tool Accessories Co., Ltd

No. 413, Wangxin Village, Qingyun Town, Yanshan County, Cangzhou City, Hebei Province

Overall Score4.7 / 5
Est. Date2023-02-10
Registered Capital600K CNY

Yanshan Zhuodi Machine Tool Accessories Co., Ltd., located at No. 413 Wangxin Village, Qingyun Town, Yanshan County, Cangzhou City, Hebei Province, was established on February 10, 2023. The registration authority is Yanshan County Market Supervision and Administration Bureau, and the legal representative is Wang Shuliang. Core products: Fireproof Flexible Joint, Machine Lamp, Drag Chain Series

Top 3
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Sichuan Hanpin Shitong Technology Co., Ltd
Overall Score4.7 / 5
Est. Date2018-06-26
Registered Capital5000K CNY

Sichuan Hanpin Shitong Technology Co., Ltd., with its registered address at 820 Gangdong 2nd Road, North Area of Chengdu Modern Industrial Port, Pidu District, Chengdu City, is registered with the Pidu District Market Supervision and Administration Bureau. The legal representative is Wang Hongchuan, and its business scope includes research and development, production, sales, and installation of environmental protection equipment and accessories, ventilation equipment and accessories, air conditioning equipment and accessories, ventilation ducts, processing and sales of metal products (excluding rare and precious metals), sales of mechanical and electrical products, steel, insulation materials, hardware products, and building materials (excluding hazardous chemicals) (the above scope does not include projects restricted or prohibited by national laws, administrative regulations, or decisions of the State Council. Projects that require approval by law can only be carried out after approval by relevant departments).. Core products: Fireproof Flexible Joint, White Iron Sheet Elbow, Air Duct

TOP4
Changzhou Yutuo Machine Tool Accessories Co., Ltd
Overall Score4.6 / 5
Est. Date2022-03-15
Registered Capital2000K CNY

Changzhou Yutuo Machine Tool Accessories Co., Ltd., with its registered address at No. 111, Xinyuan 3rd Road, Longhutang, Xinbei District, Changzhou City. The registration authority is the Government Service Management Office of Changzhou High tech Industrial Development Zone (Xinbei District), and the legal representative is Li Jinyu. Its business scope includes general projects: sales of machine tool functional components and accessories; CNC machine tool manufacturing; General equipment manufacturing (excluding special equipment manufacturing); Manufacturing of machine tool functional components and accessories; Mechanical parts and component processing; Manufacturing of general components; Manufacturing of metal materials; Manufacturing of electrical accessories; Sales of mechanical parts and components; Sales of metal materials; Sales of instruments and meters; Sales of forgings and powder metallurgy products; Sales of mechanical equipment; Sales of electrical accessories; Sales of CNC machine tools; Sales of metal products; General equipment repair; Electrical equipment repair; Repair of metal products; Import and export of goods; Import and export agency; Technology import and export (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: Fireproof Flexible Joint, Steel Drag Chain, Screw Rod Protective Cover

TOP5
Guangzhou Yingyi Metal Products Co., Ltd
Overall Score4.6 / 5
Est. Date2012-07-13
Registered Capital2000K CNY

Guangzhou Yingyi Metal Products Co., Ltd., with its registered address at No. 4, Xinzhang Road, Xinwei Industrial Zone, Xinwei Village, Xintang Town, Zengcheng District, Guangzhou City, is located in the first three and a half of the third row. The registration authority is the Market Supervision Administration of Zengcheng District, Guangzhou City, and the legal representative is Zou Xingping. Its business scope includes metal structure manufacturing; Coating and spraying of hardware products; Manufacturing and processing of hardware accessories; Installation and construction of road signs, road signs, and billboards; Wholesale of metal products; Hardware retail;. Core products: Fireproof Flexible Joint

TOP6
Langfang Kangjie Ventilation Materials Co., Ltd
Overall Score4.5 / 5
Est. Date2011-07-22
Registered Capital10000K CNY

Langfang Kangjie Ventilation Materials Co., Ltd., with its registered address at Jindi New Technology Industrial Park, Economic Development Zone, Dacheng County, Langfang City, Hebei Province, is registered with the Market Supervision and Administration Bureau of Dacheng County, Langfang City. The legal representative is Sun Jie, and the business scope includes the production and sales of air conditioning ventilation hoses, air conditioning ducts, PVC duct flanges, and silicon titanium hoses; Sales: Composite duct board, phenolic composite duct, duct composite board, color steel plate, silicone tape, fireproof cloth, glue, insulation hose, aluminum foil products. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments) Other business address: Intersection of Liuyuanzhuang Road, Litan Town, Dacheng County. Core products: Fireproof Flexible Joint, Fabric Air Duct, Integrated Smoke Control And Exhaust Duct

TOP7
Langfang Xijun Energy saving Technology Co., Ltd
Overall Score4.5 / 5
Est. Date2023-05-22
Registered Capital1000K CNY

Langfang Xijun Energy saving Technology Co., Ltd. is registered in Zangtun Village, Zangtun Town, Dacheng County, Langfang City, Hebei Province (600 meters away from Langbo Road). The registration authority is the Market Supervision Administration of Dacheng County, Langfang City, and the legal representative is Zang Yarong. The business scope includes general projects such as technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Manufacturing of insulation and soundproofing materials; Sales of insulation and soundproofing materials; Production of fireproof sealing materials; Sales of fireproof sealing materials; Manufacturing of lightweight building materials; Sales of lightweight building materials; Manufacturing of plastic products; Sales of plastic products; Rubber product manufacturing; Sales of rubber products; Manufacturing of building waterproofing membrane products; Sales of building waterproofing membrane products; Manufacturing of cement products; Sales of cement products; Manufacturing of industrial textile products; Sales of industrial textile products; Manufacturing of ecological environment materials; Sales of ecological environment materials; Production of refractory materials; Sales of refractory materials; Manufacturing of fiberglass and related products; Sales of fiberglass and related products; Sales of needle textiles and raw materials; Mechanical parts and component processing; Sales of mechanical parts and components; Cellulose fiber raw materials and fiber manufacturing; Manufacturing of construction machinery; Sales of construction machinery; Manufacturing of specialized machinery for the production of building materials; Manufacturing of new building materials (excluding hazardous chemicals); Manufacturing of specialized packaging equipment; Sales of specialized packaging equipment; Manufacturing of asbestos products; Sales of asbestos products; Fabric textile processing; Manufacturing of sealing fillers; Sales of sealing fillers; Sealing component manufacturing; Sales of seals; Manufacturing of household appliances; Sales of household appliances; Manufacturing of power electronic components; Sales of power electronic components; Manufacturing of synthetic materials (excluding hazardous chemicals); Sales of synthetic materials; Sales of building decoration materials; Sales of coatings (excluding hazardous chemicals); Sales of chemical products (excluding licensed chemical products); Sales of building materials; Retail of hardware products; Labor services (excluding labor dispatch); Sales of insulation materials; Sales of anti-corrosion materials; Sales of mechanical equipment; Operation of wires and cables; Retail of electronic components; Sales of new membrane materials; Sales of graphite and carbon products; Sales of metal materials; Promotion services for new material technology; Sales of wooden containers (except for projects that require approval according to law, business activities can be carried out independently with a business license in accordance with the law) License project: construction project construction; Construction labor subcontracting; 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. Specific business projects are subject to approval documents or permits). Core products: Fireproof Flexible Joint, Soundproofing And Insulation Cotton, Color Steel Refurbished Paint

TOP8
Dezhou Hongjun Electromechanical Equipment Co., Ltd
Overall Score4.5 / 5
Est. Date2015-07-14
Registered Capital4000K CNY

Dezhou Hongjun Electromechanical Equipment Co., Ltd., with its registered address in Bian'er Village, Bianlin Town, Lingcheng District, Dezhou City, is registered with the Lingcheng District Market Supervision and Administration Bureau of Dezhou City. The legal representative is Dong Yuling, and the business scope includes the processing, manufacturing, and sales of electromechanical equipment, central air conditioning terminal equipment, purification air conditioning equipment, machine room equipment, fire exhaust fans, fire exhaust valves, fans, air purification equipment and primary, medium, and high-efficiency filters, microelectronic purifiers, humidification equipment, dehumidification equipment, drying equipment, breeding equipment, ventilation equipment, fasteners, sheet metal parts, air vents, air ducts, and sound suppressors; Installation services for mechanical and electrical equipment, mechanical and electrical engineering, water, electricity and heating installation engineering, and fiberglass product engineering. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Fireproof Flexible Joint, Primary Filter, Wind Series

TOP9
Dezhou Xinrui Air Conditioning Equipment Co., Ltd
Overall Score4.4 / 5
Est. Date2018-12-28
Registered Capital6000K CNY

Dezhou Xinrui Air Conditioning Equipment Co., Ltd., registered at Room 901, 9th floor, Lvcheng Baihe Garden Business Office Building, No. 1161 Tianqu East Road, Changhe Street Office, Dezhou Economic and Technological Development Zone, Shandong Province. The registration authority is the Market Supervision and Administration Bureau of Dezhou Tianqu New Area (Dezhou Economic and Technological Development Zone), and the legal representative is Yao Lingjun. The business scope includes the sales of central air conditioning systems, purification air conditioning equipment and supporting products, fire dampers, smoke exhaust valves, smoke exhaust fire dampers, multi leaf smoke exhaust outlets, air volume regulating valves, fire exhaust fans, fan cases, air vents, mufflers, static pressure boxes, fiberglass products, environmental protection equipment, civil air defense equipment and accessories, stainless steel products, water tanks, cooling towers, and fresh air ventilators; Maintenance and upkeep of central air conditioning equipment (projects that require approval by law can only be carried out after approval by relevant departments).. Core products: Fireproof Flexible Joint, Combination Type Fresh Air Unit, Air Duct

TOP10
Wuxi Bokang Canvas Weaving Co., Ltd
Overall Score4.4 / 5
Est. Date2000-03-03
Registered Capital500K CNY

Wuxi Bokang Canvas Weaving Co., Ltd., with its registered address in Yangjiawan Village, Shuofang, Xinwu District, Wuxi City, is registered with the Administrative Approval Bureau of Wuxi National High tech Industrial Development Zone (Xinwu District, Wuxi City), and its legal representative is Fang Tingkang. Its business scope includes the processing, manufacturing, and sales of canvas, knitted fabric, labor protection gloves, shoes, and plastic products; Sales of automotive parts, motorcycle parts, lubricants, rubber products, canvas products, and cement expansion pipes; Ordinary freight. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Fireproof Flexible Joint, Rainproof Protective Canvas Roll, Canvas Products

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Shandong Zhongtan Intelligent Equipment Co., Ltd2022-03-01Fireproof Flexible Joint, Large-Scale Equipment, Support Category10000K CNYSupported
Yanshan Zhuodi Machine Tool Accessories Co., Ltd2023-02-10Fireproof Flexible Joint, Machine Lamp, Drag Chain Series600K CNYNot Supported
Sichuan Hanpin Shitong Technology Co., Ltd2018-06-26Fireproof Flexible Joint, White Iron Sheet Elbow, Air Duct5000K CNYSupported
Changzhou Yutuo Machine Tool Accessories Co., Ltd2022-03-15Fireproof Flexible Joint, Steel Drag Chain, Screw Rod Protective Cover2000K CNYSupported
Guangzhou Yingyi Metal Products Co., Ltd2012-07-13Fireproof Flexible Joint2000K CNYNot Supported
Langfang Kangjie Ventilation Materials Co., Ltd2011-07-22Fireproof Flexible Joint, Fabric Air Duct, Integrated Smoke Control And Exhaust Duct10000K CNYNot Supported
Langfang Xijun Energy saving Technology Co., Ltd2023-05-22Fireproof Flexible Joint, Soundproofing And Insulation Cotton, Color Steel Refurbished Paint1000K CNYNot Supported
Dezhou Hongjun Electromechanical Equipment Co., Ltd2015-07-14Fireproof Flexible Joint, Primary Filter, Wind Series4000K CNYNot Supported
Dezhou Xinrui Air Conditioning Equipment Co., Ltd2018-12-28Fireproof Flexible Joint, Combination Type Fresh Air Unit, Air Duct6000K CNYNot Supported
Wuxi Bokang Canvas Weaving Co., Ltd2000-03-03Fireproof Flexible Joint, Rainproof Protective Canvas Roll, Canvas Products500K CNYSupported

Purchasing Guide

Based on real user feedback, we provide the following suggestions:

  • In the actual procurement process of fireproof soft joints, it is recommended to prioritize checking the high temperature resistance parameters and diameter specifications to ensure that they match the connection requirements of ventilation duct systems or fire-fighting equipment.
  • For different application scenarios such as commercial building smoke exhaust systems or industrial plant fire isolation, attention should be paid to the differences in fire resistance duration and flexibility of soft joints to avoid affecting fire prevention effectiveness due to improper selection.
  • When selecting suppliers, priority should be given to product matching, business qualifications, enterprise activity, industry performance, and enterprises with industry data support or platform statistical information to reduce procurement risks.
  • For special environments such as high-rise buildings or underground spaces, it is recommended to choose fire-resistant flexible joints with compressive design, and verify whether the supplier has practical application cases in similar projects.

Knowledge Base

Q

This article explains the calculation method for the circumference of a circular fire-resistant flexible joint with a length of 200, and explores the characteristics of circular fire-resistant flexible joints and their considerations in practical applications to help readers understand relevant concepts.

Q

The core material of the fire-resistant soft joint of the common board is mainly non combustible material, and the common combination is fire-resistant cloth and punched metal sheet. The fire-resistant cloth can be made of PVC coated polyester cloth, polyurethane coated fiberglass cloth, chloroprene rubber coated fiberglass cloth, silicone rubber coated fiberglass cloth, etc. The metal sheet is mostly made of galvanized sheet and formed by folding and pressing process. This material combination ensures that the product has excellent fire resistance, while

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