Updated Oct 24, 2026 · Public platform & industry data

Oct 24, 2026 Updated

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2026 Top 10 Seal Manufacturers in China

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Top-rated Seal suppliers, How to choose a Seal manufacturer, Best Seal companies in China

The top 10 Seal manufacturers in China for 2026 are: Shandong Zhongtuo Dingcheng Chemical Machinery Co., Ltd, Shanghai Haifei Control Equipment Co., Ltd, Tianjin Yinuo Plastic Products Co., Ltd, Guangdong Zhanjiang Group Co., Ltd, Langfang Aosen Steel Aluminum Container Co., Ltd, Shandong Kairui Industrial Equipment Co., Ltd, Dezhou Runyue New Materials Co., Ltd, Lv'an Plastic Industry (Linyi) Co., Ltd, Jiangsu Guopai Transmission Technology Co., Ltd, Tiangu Sealing (Tianjin) 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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Shandong Zhongtuo Dingcheng Chemical Machinery Co., Ltd
Overall Score4.9 / 5
Est. Date2021-02-25
Registered Capital7100K CNY

Shandong Zhongtuo Dingcheng Chemical Machinery Co., Ltd., with its registered address at No. 79, Daxu Village, Beijing Road, Fujia Town, Zibo Economic Development Zone, Zibo City, Shandong Province, is registered with the Market Supervision and Administration Bureau of Zibo Economic Development Zone. The legal representative is Fu Yanhong, and its business scope includes general projects such as manufacturing of specialized equipment for oil refining and chemical production; Manufacturing of specialized equipment for environmental protection; Sales of specialized equipment for environmental protection; Specialized equipment manufacturing (excluding licensed specialized equipment manufacturing); Manufacturing of coal-fired flue gas desulfurization and denitrification equipment; Sales of coal-fired flue gas desulfurization and denitrification equipment; Manufacturing of mechanical and electrical equipment; Sales of electrical equipment; Manufacturing of power facilities and equipment; Sales of power facilities and equipment; Manufacturing of pumps and vacuum equipment; Sales of pumps and vacuum equipment; General equipment manufacturing (excluding special equipment manufacturing); Sales of special equipment; Manufacturing of metal materials; Mechanical equipment research and development; Sales of electrical and mechanical equipment; Sales of mechanical equipment; Installation services for ordinary mechanical equipment; Specialized equipment repair; Sales of metal products; Research and development of metal products; Sales of valves and plugs; Sales of high-performance non-ferrous metals and alloy materials; Sales of metal materials; Sales of metal based composite materials and ceramic based composite materials; Mechanical parts and component processing; Sales of mechanical parts and components; Wholesale of hardware products; Sales of building materials; Sales of chemical products (excluding licensed chemical products); Sales of refractory materials; Sales of non-metallic minerals and products; Sales of metal ores; Sales of building decoration materials; Sales of building waterproofing membrane products; Sales of electronic components and electromechanical equipment; Sales of non-ferrous metal alloys; Sales of electrical equipment; Sales of metal cutting and welding equipment; Sales of gears, gear reducers, and gearboxes; Sales of renewable resources; Environmental consulting services; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Conference and exhibition services; Loading and unloading handling. (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); Import and export of goods; Technology import and export. (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: Seal, Stainless Steel Mixer, Pp Can

Top 2
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Shanghai Haifei Control Equipment Co., Ltd
Overall Score4.8 / 5
Est. Date2011-11-02
Registered Capital5000K CNY

Shanghai Haifei Control Equipment Co., Ltd., located at Room 127, Building 1, No. 943 Lingzhi Village, Fengpu Development Zone, Fengxian District, Shanghai, was established on November 2, 2011. The registration authority is the Fengxian District Market Supervision Administration, and the legal representative is Ding Bangfu. Core products: Seal, Samson Control Valve, Festo Valve

Top 3
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Tianjin Yinuo Plastic Products Co., Ltd
Overall Score4.8 / 5
Est. Date2004-04-06
Registered Capital20000K CNY

Tianjin Yinuo Plastic Products Co., Ltd., with its registered address located in Xiaonianzhuang Village, Wangwenzhuang Town, Xiqing District, Tianjin. The registration authority is the Market Supervision Administration of Xiqing District, Tianjin, and the legal representative is Sun Lianji. Its business scope includes plastic products, metal mold processing, and manufacturing; Wholesale and retail of hardware, welding electrodes, building materials, steel, chemical products and raw materials (excluding dangerous goods and precursor drugs), electrical equipment, industrial electrical equipment, and plastic raw materials; Import and export of goods (excluding those prohibited by national laws and regulations); Ordinary freight. (If the above business scope involves industry licenses, operate within the valid period with the license certificate. If there are special monopoly regulations in the country, handle them according to the regulations.). Core products: Seal, 25-Liter Plastic Bucket, 15 Liter Plastic Bucket

TOP4
Guangdong Zhanjiang Group Co., Ltd
Overall Score4.7 / 5
Est. Date2019-01-15
Registered Capital10000K CNY

Guangdong Zhanjiang Group Co., Ltd., with its registered address at Building A, Building 7, Liandong Youzhi Park, No. 10 Senshuji Road, Nansha Community, Danzao Town, Nanhai District, Foshan City (registered address declared), registered with the Market Supervision Administration of Nanhai District, Foshan City, and represented by Zhang Chuang as the legal representative. Its business scope includes general projects such as engineering and technical research and experimental development; Manufacturing of security equipment; Sales of security equipment; General equipment repair; General equipment manufacturing (excluding special equipment manufacturing); Sales of special labor protection equipment; Manufacturing of information security equipment; Sales of information security equipment; Manufacturing of metal products for safety and firefighting purposes; Fire technology services; Manufacturing of electronic specialized equipment; Sales of electronic specialized equipment; Manufacturing of electronic components; Manufacturing and processing of doors and windows; Construction of metal doors and windows engineering; Information system integration services; Engineering management services; Software development; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Electronic product sales; Sales of doors and windows; Wholesale of hardware products; Domestic trade agency; Import and export of goods. (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: Seal, Telescopic Gate, License Plate Recognition Barrier

TOP5
Langfang Aosen Steel Aluminum Container Co., Ltd
Overall Score4.7 / 5
Est. Date2005-06-20
Registered Capital20000K CNY

Langfang Aosen Steel Aluminum Container Co., Ltd., with its registered address in Sanghang Village, Dacheng County, registered with the Market Supervision Administration of Dacheng County, Langfang City. The legal representative is Zhao Ruiliang, and its business scope includes general projects such as metal packaging containers and material manufacturing; Sales of metal packaging containers and materials; Manufacturing of metal structures; Sales of metal structures; Specialized equipment manufacturing (excluding licensed specialized equipment manufacturing); Manufacturing of specialized equipment for food, alcohol, beverage, and tea production; Manufacturing of specialized equipment for refining and chemical production; Sales of specialized equipment for refining and chemical production; Sales of special equipment; Sales of insulation and soundproofing materials; Sales of insulation materials; 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) License project: special equipment manufacturing; Production of hazardous chemical packaging materials and containers; Special equipment installation, renovation, and repair (projects that require approval by law can only be carried out after approval by relevant departments, and specific business projects are subject to approval documents or licenses). Core products: Seal, Aluminum Can, Silo

TOP6
Shandong Kairui Industrial Equipment Co., Ltd
Overall Score4.6 / 5
Est. Date2022-10-25
Registered Capital10000K CNY

Shandong Kairui Industrial Equipment Co., Ltd., with its registered address at Jiacun Village North Industrial Park, Zhonglou Street, Zichuan District, Zibo City, Shandong Province, is registered with the Zichuan District Market Supervision and Administration Bureau of Zibo City. The legal representative is Wang Guosen, and the business scope includes general projects: general equipment manufacturing (excluding special equipment manufacturing); Manufacturing of specialized equipment for refining and chemical production; Manufacturing of specialized equipment for environmental protection; Industrial robot manufacturing; Manufacturing of gears, gear reducers, and gearboxes; Mechanical equipment research and development; Manufacturing of bearings, gears, and transmission components; Installation services for ordinary mechanical equipment; Sales of mechanical equipment; Sales of bearings, gears, and transmission components; Sales of specialized equipment for refining and chemical production; Sales of specialized equipment for environmental protection; Sales of gears, gear reducers, and gearboxes; Sales of industrial robots. (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: Seal, Enamel Mixing Equipment, Mechanical Seal

TOP7
Dezhou Runyue New Materials Co., Ltd
Overall Score4.6 / 5
Est. Date2025-03-25
Registered Capital100K CNY

Dezhou Runyue New Materials Co., Ltd. is located in the middle section of Lingzhou Road, Ande Street, Lingcheng District, Dezhou City, Shandong Province (Room 305, Shandong Xinyu Geotechnical Materials Engineering Co., Ltd.). It was established on March 25, 2025, with the registration authority of the Lingcheng District Market Supervision Administration of Dezhou City and the legal representative being Zhu Guodong. Core products: Seal, Three Dimensional Composite Drainage Network, Geomembrane

TOP8
Lv'an Plastic Industry (Linyi) Co., Ltd
Overall Score4.6 / 5
Est. Date2022-05-25
Registered Capital3000K CNY

Lv'an Plastic Industry (Linyi) Co., Ltd., with its registered address at No. 12-1, Machanghu Village, at the intersection of Jiefang Road and National Highway 206, Machanghu Town, Linyi High tech Industrial Development Zone, Shandong Province, is registered with the Market Supervision and Administration Bureau of Linyi High tech Industrial Development Zone. The legal representative is Yan Bingyong, and the business scope includes general projects: sales of plastic products; Manufacturing of plastic packaging boxes and containers; Manufacturing of plastic products; Sales of rubber products; Manufacturing of specialized equipment for environmental protection; Sales of specialized equipment for environmental protection; Manufacturing of hardware products; Wholesale of hardware products; Retail of hardware products; Manufacturing of daily miscellaneous goods; Sales of daily miscellaneous goods; Sales of generators and generator sets; Sales of pumps and vacuum equipment; Sales of metal structures. (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: Seal, 120L Elliptical Basin, M400l

TOP9
Jiangsu Guopai Transmission Technology Co., Ltd
Overall Score4.5 / 5
Est. Date2022-07-05
Registered Capital20000K CNY

Jiangsu Guopai Transmission Technology Co., Ltd. is registered in Lingtai Village, Qianhuang Town, Wujin District, Changzhou City. The registration authority is the Wujin District Administrative Approval Bureau of Changzhou City, and the legal representative is Fan Hongsheng. The business scope includes general projects such as technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Mechanical equipment research and development; Manufacturing of gears, gear reducers, and gearboxes; Manufacturing of bearings, gears, and transmission components; Sales of gears, gear reducers, and gearboxes; Sales of bearings, gears, and transmission components (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). Core products: Seal, S Series Reducer, R Series Reducer

TOP10
Tiangu Sealing (Tianjin) Technology Co., Ltd
Overall Score4.4 / 5
Est. Date2019-11-11
Registered Capital2000K CNY

Tiangu Sealing (Tianjin) Technology Co., Ltd., registered at 18-1-2408, Aocheng Commercial Plaza, southwest of the intersection of Binshui West Road and Lingbin Road, Nankai District, Tianjin, registered with the Market Supervision Administration of Nankai District, Tianjin, with Nansen as the legal representative. Its business scope includes the development of mechanical seal technology; Wholesale and retail of mechanical seals, water pumps and accessories, and valves. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Seal, Tighten The Seal, Mechanical Seal

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Shandong Zhongtuo Dingcheng Chemical Machinery Co., Ltd2021-02-25Seal, Stainless Steel Mixer, Pp Can7100K CNYSupported
Shanghai Haifei Control Equipment Co., Ltd2011-11-02Seal, Samson Control Valve, Festo Valve5000K CNYNot Supported
Tianjin Yinuo Plastic Products Co., Ltd2004-04-06Seal, 25-Liter Plastic Bucket, 15 Liter Plastic Bucket20000K CNYNot Supported
Guangdong Zhanjiang Group Co., Ltd2019-01-15Seal, Telescopic Gate, License Plate Recognition Barrier10000K CNYNot Supported
Langfang Aosen Steel Aluminum Container Co., Ltd2005-06-20Seal, Aluminum Can, Silo20000K CNYSupported
Shandong Kairui Industrial Equipment Co., Ltd2022-10-25Seal, Enamel Mixing Equipment, Mechanical Seal10000K CNYSupported
Dezhou Runyue New Materials Co., Ltd2025-03-25Seal, Three Dimensional Composite Drainage Network, Geomembrane100K CNYNot Supported
Lv'an Plastic Industry (Linyi) Co., Ltd2022-05-25Seal, 120L Elliptical Basin, M400l3000K CNYNot Supported
Jiangsu Guopai Transmission Technology Co., Ltd2022-07-05Seal, S Series Reducer, R Series Reducer20000K CNYSupported
Tiangu Sealing (Tianjin) Technology Co., Ltd2019-11-11Seal, Tighten The Seal, Mechanical Seal2000K CNYSupported

Purchasing Guide

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

  • For procurement requirements that require the use of seals, it is recommended to verify key technical parameters such as pressure rating and material compatibility in the product specifications based on actual operating conditions (such as pressure range, temperature range, and medium type) to ensure performance compatibility.
  • When applying sealing in industrial pipelines or hydraulic systems, it is necessary to distinguish between static sealing and dynamic sealing scenarios. The former focuses on compression permanent deformation rate, while the latter requires attention to friction coefficient and wear resistance indicators.
  • 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.
  • The chemical industry needs to pay extra attention to corrosion resistance parameters when purchasing seals, and it is recommended to conduct a comprehensive evaluation based on the supplier's past supply cases in similar scenarios.

Knowledge Base

Q

Windproof sealing is an important component of anti-theft nets. How to choose a suitable windproof seal? This article provides several commonly used windproof sealing materials for you to easily choose from.

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