Updated Oct 6, 2026 · Public platform & industry data

Oct 6, 2026 Updated

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2026 Top 10 Smoke Exhaust Duct Manufacturers in China

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Top-rated Smoke Exhaust Duct suppliers, How to choose a Smoke Exhaust Duct manufacturer, Best Smoke Exhaust Duct companies in China

The top 10 Smoke Exhaust Duct manufacturers in China for 2026 are: Hebei Wohan Environmental Protection Equipment Co., Ltd, Langfang Yihang Energy saving Technology Co., Ltd, Guangdong Longtao New Materials Co., Ltd, Hengshui Baijie Steel Structure Co., Ltd, Langfang Longsheng Environmental Protection Equipment Co., Ltd, Hunan Liantai Environmental Equipment Co., Ltd, Hebei Yinwang Energy saving Technology Co., Ltd, Langfang Jinsa Thermal Insulation Materials Co., Ltd, Hebei Langke New Materials Technology Co., Ltd, Nanjing Ganchuang Environmental Protection Technology 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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Hebei Wohan Environmental Protection Equipment Co., Ltd
Overall Score4.9 / 5
Est. Date2017-08-21
Registered Capital3000K CNY

Hebei Wohan Environmental Protection Equipment Co., Ltd. is registered in Houchenzhuang Village, Wangjun Township, Zaoqiang County, Hengshui City, Hebei Province. The registration authority is the Administration for Industry and Commerce of Zaoqiang County, Hengshui City, and the legal representative is Chen Bing. The company's business scope includes processing, manufacturing, and selling environmental protection equipment, fiberglass products, purification and energy-saving equipment, sewage treatment equipment, dust removal equipment, conveyor accessories, fiberglass winding products, cooling towers and fillers, central air conditioning terminal supporting products, rubber products, automation supporting products, molded products, pipeline products, containers, filters, anti-corrosion and insulation engineering, non-standard steel structure products, gas regulator equipment, wire and cable, optical cable, cable materials, cable fittings, cable accessories, high and low voltage cabinets, power auxiliary equipment. And accessories, engineering construction and installation, 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: Smoke Exhaust Duct, Fiberglass Damper, Fiberglass Water Tank

Top 2
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Langfang Yihang Energy saving Technology Co., Ltd
Overall Score4.8 / 5
Est. Date2023-03-07
Registered Capital3660K CNY

Langfang Yihang Energy saving Technology Co., Ltd., with its registered address in Xiliugezhuang Village, Liugezhuang Town, Dacheng County, Langfang City, Hebei Province, is registered with the Market Supervision Administration of Dacheng County, Langfang City. The legal representative is Shi Huanqing, and its business scope includes general projects such as technical services, technical development, technical consulting, technical exchanges, technology transfer, and technology promotion; Manufacturing and sales of insulation and sound insulation materials, lightweight building materials, fireproof sealing materials, refractory materials, coatings (excluding hazardous chemicals), ecological environment materials (excluding hazardous chemicals), glass fibers and products, sealing fillers (excluding hazardous chemicals), cement products, plastic products, asbestos products, seals, building waterproofing membranes, insulation materials, and chemical products (excluding licensed chemical products); Internet sales (except for the sale of goods that need to be licensed); 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 in accordance with the law) Licensed project: construction project construction; Construction labor subcontracting; Construction professional operations; 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: Smoke Exhaust Duct, Vacuum Insulation Board, Glass Wool Board

Top 3
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Guangdong Longtao New Materials Co., Ltd
Overall Score4.8 / 5
Est. Date2024-05-14
Registered Capital5000K CNY

Guangdong Longtao New Materials Co., Ltd., with its registered address at No. 27 Caiyuan Road, Nanjiang Industrial Park, Dasha Town, Sihui City, is registered with the Market Supervision Administration of Sihui City. The legal representative is Bai Boqian, and its business scope includes the manufacturing of lightweight building materials; Sales of lightweight building materials; Energy saving management services; Manufacturing of insulation and soundproofing materials; Sales of insulation and soundproofing materials; Sales of insulation materials; Sales of asbestos products; Manufacturing of asbestos products; Retail of hardware products; Wholesale of hardware products; Manufacturing of hardware products; Sales of refractory materials; Production of refractory materials; Sales of building decoration materials (excluding clay bricks); Sales of fireproof sealing materials; Production of fireproof sealing materials; Sales of building waterproofing membrane products; Manufacturing of building waterproofing membrane products;; Sales of building materials (excluding clay bricks); Manufacturing of metal structures; Sales of metal structures; Sales of non-metallic minerals and products; Manufacturing of non-metallic mineral products; Sales of anti-corrosion materials; Construction professional operations (projects that require approval by law, and business activities can only be carried out after approval by relevant departments). Core products: Smoke Exhaust Duct, Aluminum Sheet, Aluminum Coil, Pipeline Insulation Material

TOP4
Hengshui Baijie Steel Structure Co., Ltd
Overall Score4.7 / 5
Est. Date2023-03-16
Registered Capital3160K CNY

Hengshui Baijie Steel Structure Co., Ltd., with its registered address at No.1 Water Plant, Liufu Industrial Zone, Jing County, Hengshui City, Hebei Province, is registered with the Jing County Market Supervision and Administration Bureau. The legal representative is Wang Chunjuan, and its business scope includes general projects such as metal structure manufacturing; Sales of metal structures; Manufacturing of metal materials; Sales of metal materials; Engineering management services; Repair of metal products; Maintenance of transportation facilities; Instrument and meter repair; Manufacturing of communication equipment; Electrical equipment repair; Sales of lighting fixtures; External contracting projects; Manufacturing of non-ferrous metal alloys; Sales of communication equipment; Sales of broadcasting and television transmission equipment; Wholesale of electronic components; Retail of electronic components; Electronic product sales; Sales of mechanical and electrical equipment; Manufacturing of radar and supporting equipment; Information system operation and maintenance services; Maintenance of electronic and mechanical equipment (excluding special equipment). (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: Smoke Exhaust Duct, Steel Chimney, Double Layered Insulated Chimney

TOP5
Langfang Longsheng Environmental Protection Equipment Co., Ltd
Overall Score4.7 / 5
Est. Date2015-07-28
Registered Capital3000K CNY

Langfang Longsheng Environmental Protection Equipment Co., Ltd., with its registered address at Ligezhuang Village North, Zhaogezhuang Town, Wen'an County, Langfang City, Hebei Province, is registered with the Market Supervision and Administration Bureau of Wen'an County, Langfang City. The legal representative is Yang Shibin, and the business scope includes manufacturing and selling waste gas treatment equipment, acid mist purification equipment, dust removal equipment, desulfurization equipment, oil fume purification equipment, organic waste gas purification equipment, sewage treatment equipment, electroplating equipment, spraying equipment, spiral ducts and accessories; Design and install ventilation ducts; Manufacturing and selling hardware products. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Smoke Exhaust Duct, Pp Air Duct, Catalytic Combustion Equipment

TOP6
Hunan Liantai Environmental Equipment Co., Ltd
Overall Score4.6 / 5
Est. Date2023-05-24
Registered Capital5000K CNY

Hunan Liantai Environmental Equipment Co., Ltd., with its registered address at No. 2 Production Plant, Changsha Zhongju Machinery Technology Industrial Park, Qiaoyi Town, Wangcheng District, Changsha City, Hunan Province, is registered with the Market Supervision and Administration Bureau of Wangcheng District, Changsha City. The legal representative is Yang Guiping, and its business scope includes licensed projects such as construction projects. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments. Specific business projects shall be subject to the approval documents or licenses issued by relevant departments.) General projects: Manufacturing of specialized equipment for environmental protection; Manufacturing of ecological environment monitoring and detection instruments and meters; Manufacturing of mechanical and electrical equipment; Fan and fan manufacturing; Promotion services for new material technology; Research and development of new material technology; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Manufacturing of high-performance fibers and composite materials; Manufacturing of non-ferrous metal alloys; Manufacturing of metal materials; Manufacturing of metal fittings for construction; Manufacturing of architectural decoration, plumbing components, and other metal products for building use; Manufacturing of metal daily necessities; Manufacturing of metal structures; Production of refractory materials; Manufacturing of sealing fillers; Production of fireproof sealing materials; Manufacturing of metal products for safety and firefighting purposes; Manufacturing of refrigeration and air conditioning equipment; General equipment manufacturing (excluding special equipment manufacturing); Installation services for ordinary mechanical equipment; Sales of graphite and carbon products; Sales of building decoration materials; Sales of metal materials; Sales of non-ferrous metal alloys; Sales of specialized equipment for environmental protection; Sales of new metal functional materials; Sales of refractory materials; Sales of fireproof sealing materials; Sales of refrigeration and air conditioning equipment; Sales of anti-corrosion materials; Municipal facility management; Sales of specialized instruments and meters for environmental monitoring; Air pollution control; Air pollution prevention and control services; Water pollution prevention and control services; Sales of firefighting equipment; Sales of security equipment; Fire technology services. (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: Smoke Exhaust Duct, Fireproof Duct, Air Duct

TOP7
Hebei Yinwang Energy saving Technology Co., Ltd
Overall Score4.6 / 5
Est. Date2024-01-24
Registered Capital3000K CNY

Hebei Yinwang Energy saving Technology Co., Ltd., with its registered address in Liuyanma Village, Zangtun Town, Dacheng County, Langfang City, Hebei Province, is registered with the Market Supervision Administration of Dacheng County, Langfang City. The legal representative is Hao Dongxu, and the business scope includes general projects such as technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Manufacturing of high-performance fibers and composite materials; Sales of high-performance fibers and composite materials; Production of fireproof sealing materials; Sales of fireproof sealing materials; Manufacturing of insulation and soundproofing materials; Sales of insulation and soundproofing materials; Manufacturing of lightweight building materials; Sales of lightweight building materials; Manufacturing of asbestos products; Sales of asbestos products; Rubber product manufacturing; Sales of rubber products; Manufacturing of graphite and carbon products; Sales of graphite and carbon products; Manufacturing of plastic products; Sales of plastic products; Manufacturing of cement products; Sales of cement products; Manufacturing of building waterproofing membrane products; Sales of building waterproofing membrane products; Manufacturing of ecological environment materials; Sales of ecological environment materials; Manufacturing of sealing fillers; Sales of sealing fillers; Production of refractory materials; Sales of refractory materials; Sales of coatings (excluding hazardous chemicals); Manufacturing of hardware products; Retail of hardware products; Manufacturing of daily wooden products; Sales of daily wooden products; Sales of building materials; Sales of building decoration materials; Sales of metal materials; Sales of lighting fixtures; Sales of insulation materials; Sales of non-metallic minerals and products; Sales of metal products; Sales of anti-corrosion materials; Sales of synthetic materials; Import and export of goods; Technology import and export; Labor services (excluding labor dispatch). (Except for projects that require approval according to law, business activities can be carried out independently based on the business license in accordance with the law) Licensed project: construction project construction; Construction labor subcontracting; Professional construction work. (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: Smoke Exhaust Duct, Ceramsite Concrete, Fireproof Package

TOP8
Langfang Jinsa Thermal Insulation Materials Co., Ltd
Overall Score4.6 / 5
Est. Date2021-08-24
Registered Capital6000K CNY

Langfang Jinsa Thermal Insulation Materials Co., Ltd., with its registered address in Mengen Village, Quancun Town, Dacheng County, Langfang City, Hebei Province, is registered with the Market Supervision Administration of Dacheng County, Langfang City. The legal representative is Liu Baofeng, and its business scope includes the manufacturing and sales of thermal insulation and sound insulation materials; Manufacturing of synthetic materials (excluding hazardous chemicals); Manufacturing of lightweight building materials; Sales of synthetic materials, refractory materials, building materials, and insulation materials; Construction project construction. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Smoke Exhaust Duct, Rubber Tube/Plate, Aluminum Silicate

TOP9
Hebei Langke New Materials Technology Co., Ltd
Overall Score4.5 / 5
Est. Date2023-10-18
Registered Capital3000K CNY

Hebei Langke New Material Technology Co., Ltd., with its registered address in Dongyaotou Village, Quancun Town, Dacheng County, Langfang City, Hebei Province, is registered with the Market Supervision Administration of Dacheng County, Langfang City. The legal representative is Li Tieqing, and 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; Manufacturing of building waterproofing membrane products; Sales of building waterproofing membrane products; Production of fireproof sealing materials; Sales of fireproof sealing materials; Manufacturing of sealing fillers; Sales of sealing fillers; Fastener manufacturing; Sales of fasteners; Manufacturing of fiberglass and related products; Sales of fiberglass and related products; Manufacturing of lightweight building materials; Sales of lightweight building materials; Rubber product manufacturing; Sales of rubber products; Manufacturing of plastic products; Sales of plastic products; Manufacturing of synthetic materials (excluding hazardous chemicals); Sales of synthetic materials; Manufacturing of hardware products; Retail of hardware products; Sales of anti-corrosion materials; Sales of coatings (excluding hazardous chemicals); Sales of chemical products (excluding licensed chemical products); Sales of insulation materials. (Except for projects that require approval according to law, business activities can be carried out independently based on the business license in accordance with the law) Licensed project: construction project construction; Construction professional operations; Construction labor subcontracting. (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: Smoke Exhaust Duct, Polyurethane Insulation Board, Built In Insulation Structure Integrated Board

TOP10
Nanjing Ganchuang Environmental Protection Technology Co., Ltd
Overall Score4.3 / 5
Est. Date2018-06-22
Registered Capital5000K CNY

Nanjing Ganchuang Environmental Protection Technology Co., Ltd. is registered at Room 203, Building 2, Zone 8, Nanjing International Small Commodity City, No. 2 Qinlu Avenue, Lukou Street, Jiangning District, Nanjing City, Jiangsu Province. The registration authority is the Jiangning District Administrative Approval Bureau of Nanjing City, and the legal representative is Guo Jiabin. The business scope includes technology development, technical consulting, technology transfer, and technical services in the fields of environmental protection technology and HVAC equipment; Design and installation of environmental protection equipment and oil fume purifiers; Real estate brokerage; Enterprise management consulting; Exhibition and display services; estate management; Real estate development and operation; Installation and maintenance of HVAC equipment, air conditioning equipment, and electromechanical equipment; Water and electricity installation engineering, building decoration engineering, steel structure engineering, municipal public works construction; Sales of HVAC equipment, electronic products, mechanical equipment, metal products, stainless steel products, daily necessities, packaging materials, hardware and electrical equipment, complete electrical equipment, rubber and plastic products, ceramic products, and hotel supplies. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Smoke Exhaust Duct, Ventilation Duct, Spiral Duct

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Hebei Wohan Environmental Protection Equipment Co., Ltd2017-08-21Smoke Exhaust Duct, Fiberglass Damper, Fiberglass Water Tank3000K CNYSupported
Langfang Yihang Energy saving Technology Co., Ltd2023-03-07Smoke Exhaust Duct, Vacuum Insulation Board, Glass Wool Board3660K CNYNot Supported
Guangdong Longtao New Materials Co., Ltd2024-05-14Smoke Exhaust Duct, Aluminum Sheet, Aluminum Coil, Pipeline Insulation Material5000K CNYNot Supported
Hengshui Baijie Steel Structure Co., Ltd2023-03-16Smoke Exhaust Duct, Steel Chimney, Double Layered Insulated Chimney3160K CNYSupported
Langfang Longsheng Environmental Protection Equipment Co., Ltd2015-07-28Smoke Exhaust Duct, Pp Air Duct, Catalytic Combustion Equipment3000K CNYSupported
Hunan Liantai Environmental Equipment Co., Ltd2023-05-24Smoke Exhaust Duct, Fireproof Duct, Air Duct5000K CNYNot Supported
Hebei Yinwang Energy saving Technology Co., Ltd2024-01-24Smoke Exhaust Duct, Ceramsite Concrete, Fireproof Package3000K CNYSupported
Langfang Jinsa Thermal Insulation Materials Co., Ltd2021-08-24Smoke Exhaust Duct, Rubber Tube/Plate, Aluminum Silicate6000K CNYNot Supported
Hebei Langke New Materials Technology Co., Ltd2023-10-18Smoke Exhaust Duct, Polyurethane Insulation Board, Built In Insulation Structure Integrated Board3000K CNYNot Supported
Nanjing Ganchuang Environmental Protection Technology Co., Ltd2018-06-22Smoke Exhaust Duct, Ventilation Duct, Spiral Duct5000K CNYNot Supported

Purchasing Guide

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

  • For procurement requirements that require the use of smoke exhaust ducts, it is recommended to prioritize confirming key technical parameters such as the fire resistance limit and high temperature resistance of the ducts to ensure compliance with building fire safety regulations.
  • In high-frequency application scenarios such as commercial complexes or underground parking lots, it is necessary to choose products with duct cross-sectional dimensions that match the system air volume, while considering installation space limitations.
  • When selecting suppliers, priority should be given to product compatibility, business qualifications, enterprise activity, industry performance, and enterprises with industry data support or platform statistical information.
  • Special scenarios such as industrial plants require attention to the anti-corrosion performance of air ducts. It is recommended to choose materials such as galvanized steel or stainless steel based on the composition of the exhaust medium.

Knowledge Base

Q

This article analyzes the three core requirements of smoke exhaust duct sealant, including high temperature resistance, sealing durability, and construction convenience, to help engineering personnel scientifically choose suitable sealing materials and ensure the safety and reliability of smoke exhaust systems.

Q

Baidu AiGou has found pictures related to different categories of cleanroom smoke exhaust ducts for you, taking you to appreciate the diversity and uniqueness of cleanroom smoke exhaust ducts. At the same time, we also recommend high-quality cleanroom smoke exhaust duct products for you, so that you can easily and quickly find the most suitable cleanroom smoke exhaust duct when purchasing.

Q

When a building catches fire, the smoke exhaust duct transports and replenishes pressurized air, preventing the intrusion of smoke and giving rescue personnel time to evacuate. The common practice is to wrap the galvanized steel sheet air duct with insulation material to ensure that the smoke exhaust duct can maintain effective operation for a certain period of time in the event of a fire. The fire-resistant wrapping outside the smoke exhaust duct is made of glass wool insulation material

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