Updated Oct 23, 2026 · Public platform & industry data

Oct 23, 2026 Updated

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2026 Top 10 Composite Gasket Manufacturers in China

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

The top 10 Composite Gasket manufacturers in China for 2026 are: Handan Johnson Fasteners Manufacturing Co., Ltd, Wuxi Tianrui Metal Products Co., Ltd, Langfang Huijin Energy saving Technology Co., Ltd, Lanling Shengtai Steel Structure Support Factory, Langfang Yuankun Sealing Materials Co., Ltd, Dacheng County Zhenglang Sealing Materials Co., Ltd, Jiangsu Linwei New Materials Co., Ltd, Langfang Luzhan Sealing Materials Co., Ltd, Dacheng County Lexiang Sealing Materials Co., Ltd, Langfang Qincheng Sealing Materials 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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Handan Johnson Fasteners Manufacturing Co., Ltd
Overall Score4.9 / 5
Est. Date2021-03-05
Registered Capital2000K CNY

Handan Johnson Fasteners Manufacturing Co., Ltd., registered at Ximingyang Village South, Linmingguan Town, Yongnian District, Handan City, Hebei Province, with Yongnian District Market Supervision and Administration Bureau as the registration authority and Wu Yunfei as the legal representative, engages in the manufacturing and sales of fasteners, metal products, industrial and mining accessories, photovoltaic accessories, seismic accessories, transportation facility accessories, stainless steel products, rubber products, plastic products (excluding medical), rigging, mechanical equipment and accessories; Sales of steel, building materials, mechanical and electrical equipment, and labor protection supplies; Import and export business of goods. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Composite Gasket, High Strength Screws, High-Strength Bolt

Top 2
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Wuxi Tianrui Metal Products Co., Ltd
Overall Score4.7 / 5
Est. Date2014-06-05
Registered Capital10000K CNY

Wuxi Tianrui Metal Products Co., Ltd., with its registered address at Room 405, No. 76, Phase I, Dongfang Steel City, Zhengyang Village, Dongbeitang, Xishan District, Wuxi City, is registered with the Administrative Approval Bureau of Xishan District, Wuxi City. The legal representative is Ge Jingcheng, and its business scope includes the sales of metal materials and their products, five metal and electrical equipment, and building decoration materials (excluding paint and coatings). (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Composite Gasket, Double Sided Copper Aluminum Steel Composite Panel, Metal Explosion Composite Panel

Top 3
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Langfang Huijin Energy saving Technology Co., Ltd
Overall Score4.7 / 5
Est. Date2024-02-26
Registered Capital3000K CNY

Langfang Huijin Energy saving Technology Co., Ltd. is registered at 300 meters south of the intersection of Yongding Street and Langbo Road in Pingshu Town, Dacheng County, Langfang City, Hebei Province. The registration authority is the Market Supervision Administration of Dacheng County, Langfang City, and the legal representative is He Juan. The business scope includes general projects such as technical services, technical development, technical consulting, technical exchanges, technology transfer, and technology promotion; Sales of insulation and soundproofing materials; Sales of fireproof sealing materials; Sales of sealing fillers; Sales of synthetic materials; Sales of rubber products; Sales of non-metallic minerals and products; Sales of fiberglass and related products; Sales of glass fiber reinforced plastic products; Sales of seals; Sales of high-performance fibers and composite materials; Sales of synthetic fibers; Sales of building waterproofing membrane products; Sales of cement products; Sales of specialized chemical products (excluding hazardous chemicals); Sales of ecological environment materials; Sales of lightweight building materials; Sales of building materials; Sales of asbestos products; Sales of insulation materials; Sales of plastic products; Sales of refractory materials; Sales of coatings (excluding hazardous chemicals); Sales of anti-corrosion materials; Sales of chemical products (excluding licensed chemical products); Labor services (excluding labor dispatch); Construction of landscaping and greening projects. (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: Composite Gasket, Ptfe Envelope Gasket , Polyurethane Board

TOP4
Lanling Shengtai Steel Structure Support Factory
Overall Score4.6 / 5
Est. Date2013-12-27
Registered Capital1000K CNY

Lanling Shengtai Steel Structure Support Factory, registered in Daguanzhuang Village, Lanling County Development Zone, with the registration authority of Lanling County Market Supervision Administration and the legal representative of Chen Qi. Its business scope includes processing and sales of steel structure supports, steel, and metal roof accessories; Production, processing, and sales of photovoltaic brackets and accessories; Processing and sales of solar energy supporting products; Processing, production, and sales of high and low voltage electrical equipment; Processing and selling waterproof materials (excluding asphalt); Development, construction, and maintenance of photovoltaic power generation projects; Electric power engineering construction; Engaged in the technological development of polymer new materials and the research and development of butyl waterproof adhesive; Selling plastic products, electrical equipment, chemical raw materials (excluding hazardous chemicals), packaging materials, and mechanical equipment accessories. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Composite Gasket, Aluminum Alloy Compression Block, Fixed Photovoltaic Modules

TOP5
Langfang Yuankun Sealing Materials Co., Ltd
Overall Score4.6 / 5
Est. Date2017-11-21
Registered Capital2000K CNY

Langfang Yuankun Sealing Materials Co., Ltd. is registered in Liuguxian Village, Zangtun Township, Dacheng County, Langfang City, Hebei Province. The registration authority is the Administration for Industry and Commerce of Dacheng County, Langfang City, and the legal representative is Xue Pengkun. The business scope includes the production and sales of polytetrafluoroethylene products, packing roots, rubber products, graphite products, metal pads and sheets, biomass pellet combustion machines, packaging machines, cement foam products, silicon board equipment, non dismantling template equipment, and packaging machines; Sales: asbestos products, fiberboard, mats, fireproof materials, insulation materials, chemical products (excluding hazardous chemicals). (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Composite Gasket, High Pressure Asbestos Gasket, Ptfe Composite Rubber Gasket

TOP6
Dacheng County Zhenglang Sealing Materials Co., Ltd
Overall Score4.5 / 5
Est. Date2014-12-26
Registered Capital16800K CNY

Dacheng Zhenglang Sealing Materials Co., Ltd., with its registered address in Bidaokou Village, Dacheng County, registered with the Market Supervision and Administration Bureau of Dacheng County, Langfang City. The legal representative is Wang Hailong, and its business scope includes processing and sales of PTFE products, metal winding pads, graphite composite pads, ceramic fiber products, packing, and aluminum silicate products; Sales: Rubber products, asbestos products, fiberglass products. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Composite Gasket, Ptfe Elastic Band, Asbestos Gasket

TOP7
Jiangsu Linwei New Materials Co., Ltd
Overall Score4.5 / 5
Est. Date2018-11-06
Registered Capital10000K CNY

Jiangsu Linwei New Materials Co., Ltd. is registered at No. 8 Yongsheng Industrial Zone, Baqiao Town, Yangzhong City, Zhenjiang City. The registration authority is Yangzhong Administrative Approval Bureau, and the legal representative is Liu Meilin. The business scope includes optoelectronic products, photovoltaic welding strips, photovoltaic equipment and accessories, engineering plastic products, rubber products, PTFE products, metal products, industrial pipeline valves, electrical accessories, mechanical parts processing, manufacturing, and sales. Manufacturing of industrial textile products; Sales of industrial textile products; Production of daily masks (non-medical); Sales of daily masks (non-medical); (For projects that require approval by law, business activities can only be carried out after approval by relevant departments) Licensed projects: import and export of goods; Technology import and export; Import and export agency (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: Composite Gasket, Nylon Bushing, Pfa Board

TOP8
Langfang Luzhan Sealing Materials Co., Ltd
Overall Score4.5 / 5
Est. Date2020-12-24
Registered Capital2000K CNY

Langfang Luzhan Sealing Materials Co., Ltd., with its registered address in Wangfan Village, Guang'an Town, Dacheng County, Langfang City, Hebei Province, is registered with the Market Supervision Administration of Dacheng County, Langfang City. The legal representative is Yan Zhihua, and the business scope includes processing and sales of asbestos cloth, ropes, belts, sealing gaskets, ceramic fiber products, PTFE gaskets, PTFE plates, aramid gaskets, carbon fiber gaskets, oil immersed gaskets, asbestos gaskets, PTFE gaskets, metal wound gaskets, gasket rings, PTFE coated gaskets, graphite products, and rubber products; Sales: fiberglass cloth, rope, tape, fireproof cloth, fireproof board, fireproof coating, fireproof blocking material, insulation material. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Composite Gasket, Asbestos Sealing Tape, Ceramic Fiber Cloth

TOP9
Dacheng County Lexiang Sealing Materials Co., Ltd
Overall Score4.4 / 5
Est. Date2015-06-19
Registered Capital1000K CNY

Dacheng Lexiang Sealing Materials Co., Ltd., registered in Wangfan Village, Guang'an Town, Dacheng County, Langfang City, Hebei Province, with the registration authority of Dacheng County Administration for Industry and Commerce and the legal representative of Yan Zikai, is engaged in the production and sales of PTFE gaskets, carbon gaskets, aramid gaskets, rubber gaskets, oil immersed gaskets, and PTFE raw material tapes; Sales: Various types of packing, packing pads, metal winding pads, steel ladle pads, PTFE plates, pads, rods, strips, turning films, smoke box strips, asbestos pads, plates, fabrics, strips, ropes, rubber pads, plates, insulation materials. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Composite Gasket, Carbon Packing, Ptfe Packing

TOP10
Langfang Qincheng Sealing Materials Co., Ltd
Overall Score4.3 / 5
Est. Date1998-06-30
Registered Capital1000K CNY

Langfang Qincheng Sealing Materials Co., Ltd., with its registered address at Lizhuangzi, Daguang'an Township, Dacheng County, registered with the Market Supervision and Administration Bureau of Dacheng County, Langfang City. The legal representative is Li Jianjun, and its business scope includes general projects such as asbestos product manufacturing; Sales of asbestos products; Manufacturing of sealing fillers; Sales of sealing fillers; Sealing component manufacturing; Sales of seals; Rubber product manufacturing; Sales of rubber products; Manufacturing of plastic products; Sales of plastic products; Manufacturing of insulation and soundproofing materials; Sales of insulation and soundproofing materials; Sales of insulation materials; Sales of high-performance sealing materials; Sales of anti-corrosion materials; Sales of refractory materials; Sales of fiberglass and related products; Sales of fireproof sealing materials; Sales of coatings (excluding hazardous chemicals); Sales of chemical products (excluding licensed chemical products). (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: Composite Gasket, Rubber Pad, Rubber Sheet

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Handan Johnson Fasteners Manufacturing Co., Ltd2021-03-05Composite Gasket, High Strength Screws, High-Strength Bolt2000K CNYSupported
Wuxi Tianrui Metal Products Co., Ltd2014-06-05Composite Gasket, Double Sided Copper Aluminum Steel Composite Panel, Metal Explosion Composite Panel10000K CNYNot Supported
Langfang Huijin Energy saving Technology Co., Ltd2024-02-26Composite Gasket, Ptfe Envelope Gasket , Polyurethane Board3000K CNYNot Supported
Lanling Shengtai Steel Structure Support Factory2013-12-27Composite Gasket, Aluminum Alloy Compression Block, Fixed Photovoltaic Modules1000K CNYSupported
Langfang Yuankun Sealing Materials Co., Ltd2017-11-21Composite Gasket, High Pressure Asbestos Gasket, Ptfe Composite Rubber Gasket2000K CNYSupported
Dacheng County Zhenglang Sealing Materials Co., Ltd2014-12-26Composite Gasket, Ptfe Elastic Band, Asbestos Gasket16800K CNYNot Supported
Jiangsu Linwei New Materials Co., Ltd2018-11-06Composite Gasket, Nylon Bushing, Pfa Board10000K CNYSupported
Langfang Luzhan Sealing Materials Co., Ltd2020-12-24Composite Gasket, Asbestos Sealing Tape, Ceramic Fiber Cloth2000K CNYSupported
Dacheng County Lexiang Sealing Materials Co., Ltd2015-06-19Composite Gasket, Carbon Packing, Ptfe Packing1000K CNYSupported
Langfang Qincheng Sealing Materials Co., Ltd1998-06-30Composite Gasket, Rubber Pad, Rubber Sheet1000K CNYSupported

Purchasing Guide

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

  • For procurement requirements that require the use of composite gaskets, it is recommended to prioritize confirming technical parameters such as pressure rating, temperature range, and material combination to ensure compatibility with equipment sealing requirements.
  • In high-voltage scenarios such as chemical or electrical engineering, the corrosion resistance and elastic recovery rate of composite gaskets are key indicators, and corresponding product specifications need to be selected based on the characteristics of the medium.
  • When selecting suppliers, priority should be given to product compatibility, business qualifications, enterprise activity, industry performance, and companies with industry data support to balance procurement risks and long-term cooperation stability.
  • Composite gaskets are commonly used in pipeline flanges or reactor seals, and selection should be based on detailed parameters such as interface size and surface roughness during procurement.

Knowledge Base

Q

Flexible graphite composite gasket, also known as reinforced graphite composite gasket or high-strength graphite gasket, is made of graphite composite plate by punching or cutting. Compared with pure graphite gasket and general metal gasket, it has better compression resilience, high and low temperature resistance, and corrosion resistance. Graphite composite board is composed of a sprint metal toothed plate, a metal mesh plate, and a flexible graphite material pressure roller, which are composite compared to ordinary ones

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