Updated Aug 31, 2026 · Public platform & industry data

Aug 31, 2026 Updated

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2026 Top 10 Full-Length Insulation Gasket Manufacturers in China

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Top-rated Full-Length Insulation Gasket suppliers, How to choose a Full-Length Insulation Gasket manufacturer, Best Full-Length Insulation Gasket companies in China

The top 10 Full-Length Insulation Gasket manufacturers in China for 2026 are: Hebei Ruide Energy saving Technology Co., Ltd, Langfang Paiheng Energy saving Technology Co., Ltd, Langfang Yihang Energy saving Technology Co., Ltd, Langfang Newshi Thermal Insulation Materials Co., Ltd, Langfang Jianji Energy saving Technology Co., Ltd, Langfang Puzhe Energy saving Technology Co., Ltd, Langfang Yiqing Thermal Insulation Materials Co., Ltd, Hebei Huanjiu Energy saving Technology Co., Ltd, Langfang Guyuan Supply Chain Co., Ltd, Langfang Hongou Energy saving 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 Ruide Energy saving Technology Co., Ltd
Overall Score4.9 / 5
Est. Date2022-06-09
Registered Capital10000K CNY

Hebei Ruide Energy saving 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 Gao Yinzhan, and its 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 ecological environment materials; Sales of ecological environment materials; 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; Sales of insulation materials; Sales of building materials; Sales of fireproof sealing materials; Sales of refractory materials; Sales of coatings (excluding hazardous chemicals); Sales of specialized chemical products (excluding hazardous chemicals); Sales of chemical products (excluding licensed chemical products); Sales of synthetic materials; Sales of high-performance sealing materials; Sales of seals; Sales of building waterproofing membrane products; Retail of hardware products; Sales of metal materials; Sales of metal products; Sales of non-ferrous metal alloys; Sales of new metal functional materials; Sales of metal structures; Sales of new membrane materials; Needle textile sales; Sales of high-performance non-ferrous metals and alloy materials; Sales of non-metallic minerals and products; Sales of paper products; Sales of asbestos products; Sales of cement products; Sales of fasteners; Sales of anti-corrosion materials (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 (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 approval documents or permits). Core products: Full-Length Insulation Gasket, Glass Wool Insulation Board, Glass Wool Board

Top 2
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Langfang Paiheng Energy saving Technology Co., Ltd
Overall Score4.7 / 5
Est. Date2023-05-16
Registered Capital3000K CNY

Langfang Paiheng 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 Jiaying, and its business scope includes general projects such as technical services, technical development, technical consulting, technical exchanges, technology transfer, and technology promotion; Manufacturing of insulation and soundproofing materials; Sales of insulation and soundproofing materials; Sales of fiberglass and related products; Sales of lightweight building materials; Sales of rubber products; Sales of plastic products; Sales of insulation materials; Sales of building materials; Sales of fireproof sealing materials; Sales of refractory materials; Sales of coatings (excluding hazardous chemicals); Sales of specialized chemical products (excluding hazardous chemicals); Sales of high-performance sealing materials; Sales of seals; Sales of building waterproofing membrane products. (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. (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: Full-Length Insulation Gasket, Rock Wool Board, Cement Foam Board

Top 3
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Langfang Yihang Energy saving Technology Co., Ltd
Overall Score4.7 / 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: Full-Length Insulation Gasket, Aluminum Silicate, Waterproof Backing Board

TOP4
Langfang Newshi Thermal Insulation Materials Co., Ltd
Overall Score4.6 / 5
Est. Date2025-03-10
Registered Capital500K CNY

Langfang Newshi Thermal Insulation Materials Co., Ltd., with its registered address in Xiliugezhuang Village, Liugezhuang Town, Dacheng County, Langfang City, Hebei Province, is registered with the Market Supervision and Administration Bureau of Dacheng County, Langfang City. The legal representative is Zhang Yanwei, and the business scope includes general projects: manufacturing of thermal insulation and sound insulation materials; Sales of insulation and soundproofing materials; Production of refractory materials; Sales of refractory materials; Sales of insulation materials; Manufacturing of asbestos products; Sales of asbestos products; Rubber product manufacturing; Sales of rubber products; Sales of coatings (excluding hazardous chemicals); Manufacturing of building waterproofing membrane products; Sales of building waterproofing membrane products; Manufacturing of sealing fillers; Sales of sealing fillers; Sealing component manufacturing; Sales of seals; Manufacturing of plastic products; Sales of plastic products; Production of fireproof sealing materials; Sales of fireproof sealing materials; Manufacturing of lightweight building materials; Sales of lightweight building materials; Sales of building materials; Sales of high-performance sealing materials; Manufacturing of graphite and carbon products; Sales of graphite and carbon products; Manufacturing of non-metallic mineral products; Sales of non-metallic minerals and products; Manufacturing of fiberglass and related products; Sales of fiberglass and related products; Sales of chemical products (excluding licensed chemical products); Manufacturing of ecological environment materials; Sales of ecological environment materials; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Sales of anti-corrosion materials; Retail of hardware products; Sales of metal products; Import and export of goods (except for projects that require approval according to law, independently conducting business activities that are not prohibited or restricted by laws and regulations) License projects: construction projects; Construction labor subcontracting; Construction professional operations (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 permits). Core products: Full-Length Insulation Gasket, Ceramic Fiber Sealing Strip, Rock Wool Board

TOP5
Langfang Jianji Energy saving Technology Co., Ltd
Overall Score4.6 / 5
Est. Date2025-08-04
Registered Capital500K CNY

Langfang Jianji Energy saving Technology Co., Ltd., with its registered address at No. 36, East 1st Street, Xiliugezhuang Village Park, Liugezhuang Town, Dacheng County, Langfang City, Hebei Province, is registered with the Market Supervision and Administration Bureau of Dacheng County, Langfang City. The legal representative is Gao Yinzhan, and its 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 refractory materials; Sales of refractory materials; Sales of insulation materials; Sales of asbestos products; Manufacturing of asbestos products; Rubber product manufacturing; Sales of rubber products; Manufacturing of building waterproofing membrane products; Sales of building waterproofing membrane products; Manufacturing of sealing fillers; Sales of sealing fillers; Sealing component manufacturing; Sales of seals; Manufacturing of plastic products; Sales of plastic products; Production of fireproof sealing materials; Sales of fireproof sealing materials; Manufacturing of lightweight building materials; Sales of lightweight building materials; Manufacturing of asbestos cement products; Sales of asbestos cement products; Manufacturing of cement products; Sales of cement products; Manufacturing of special ceramic products; Sales of special ceramic products; Sales of building decoration materials; Sales of non-metallic minerals and products; Manufacturing of non-metallic mineral products; Manufacturing of graphite and carbon products; Sales of graphite and carbon products; Sales of high-performance sealing materials; Manufacturing of fiberglass and related products; Sales of fiberglass and related products; Manufacturing of ecological environment materials; Sales of ecological environment materials; Manufacturing of synthetic materials (excluding hazardous chemicals); Sales of synthetic materials; Sales of building materials; Sales of chemical products (excluding licensed chemical products); Sales of anti-corrosion materials; Sales of coatings (excluding hazardous chemicals); Retail of hardware 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: Full-Length Insulation Gasket, Multi Functional Waterproof Backing Board, Rubber And Plastic Board

TOP6
Langfang Puzhe Energy saving Technology Co., Ltd
Overall Score4.5 / 5
Est. Date2023-04-18
Registered Capital3000K CNY

Langfang Puzhe Energy saving Technology Co., Ltd., with its registered address in Liugezhuangqiao 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 Du Qingsong, and the business scope includes general projects such as technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Sales of insulation and soundproofing materials; Sales of insulation materials; Sales of rubber products; Sales of plastic products; Sales of building materials; Sales of sealing fillers; Sales of refractory materials; Sales of fireproof sealing materials; Sales of anti-corrosion materials; Sales of building waterproofing membrane products; Sales of asbestos products; Sales of metal products; Retail of hardware products; Sales of chemical products (excluding licensed chemical products). (Except for projects that require approval according to law, business activities can be carried out independently based on the business license.) Licensed project: 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: Full-Length Insulation Gasket, Aluminum Silicate Insulation Roll Felt, Aluminum Silicate Fiber Blanket

TOP7
Langfang Yiqing Thermal Insulation Materials Co., Ltd
Overall Score4.5 / 5
Est. Date2021-01-28
Registered Capital2000K CNY

Langfang Yiqing Thermal Insulation Materials Co., Ltd., with its registered address in Puta Village, Liugezhuang Town, Dacheng County, Langfang City, Hebei Province, is registered with the Market Supervision and Administration Bureau of Dacheng County, Langfang City. The legal representative is Liu Junxian, and the business scope includes general projects: manufacturing of thermal insulation and sound insulation materials; Sales of insulation and soundproofing materials; Manufacturing of fiberglass and related products; Sales of fiberglass and related products; Manufacturing of cement products; Sales of cement products; Sales of insulation materials; Sales of coatings (excluding hazardous chemicals); Sales of metal structures; Sales of metal materials; Sales of fireproof sealing materials; Sales of building waterproofing membrane products; Sales of anti-corrosion materials; Sales of high-performance sealing materials; Sales of chemical products (excluding licensed chemical products); Sales of new ceramic 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 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: Full-Length Insulation Gasket, Foamed Cement, Foam Glass

TOP8
Hebei Huanjiu Energy saving Technology Co., Ltd
Overall Score4.5 / 5
Est. Date2024-12-24
Registered Capital3000K CNY

Hebei Huanjiu Energy saving Technology Co., Ltd., with its registered address in Wangyuantou Village, Litan Town, Dacheng County, Langfang City, Hebei Province, is registered with the Market Supervision Administration of Dacheng County, Langfang City. The legal representative is Wang Jincheng, 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; Production of refractory materials; Sales of refractory materials; Rubber product manufacturing; Sales of rubber products; Manufacturing of sealing fillers; Sales of sealing fillers; Sealing component manufacturing; Sales of seals; Manufacturing of asbestos products; Sales of asbestos products; Production of fireproof sealing materials; Sales of fireproof sealing materials; Manufacturing of building waterproofing membrane products; Sales of building waterproofing membrane products; Sales of anti-corrosion materials; Sales of coatings (excluding hazardous chemicals); Sales of chemical products (excluding licensed chemical products); Sales of insulation materials; Sales of doors and windows; Retail of hardware products; Sales of electrical equipment (except for projects that require approval according to law, independently conducting business activities that are not prohibited or restricted by laws and regulations) License project: construction project construction; Construction labor subcontracting (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 approval documents or permits). Core products: Full-Length Insulation Gasket, Centrifugal Glass Wool Board, Insulation Board

TOP9
Langfang Guyuan Supply Chain Co., Ltd
Overall Score4.4 / 5
Est. Date2025-03-11
Registered Capital500K CNY

Langfang Guyuan Supply Chain 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 Gao Jianchao, and its business scope includes general projects such as supply chain management services; General cargo warehousing services (excluding projects requiring permits and approvals such as hazardous chemicals); Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Sales of insulation and soundproofing materials; Sales of refractory materials; Sales of insulation materials; Sales of asbestos products; Sales of rubber products; Sales of building waterproofing membrane products; Sales of sealing fillers; Sales of seals; Sales of coatings (excluding hazardous chemicals); Sales of plastic products; Sales of fireproof sealing materials; Sales of graphite and carbon products; Sales of high-performance sealing materials; Sales of non-metallic minerals and products; Sales of ecological environment materials; Sales of fiberglass and related products; Sales of building materials; Sales of lightweight building materials; Sales of anti-corrosion materials; Retail of hardware products; Sales of metal products; Import and export of goods; Sales of chemical products (excluding licensed chemical products) (except for projects that require approval according to law, independently conducting business activities that are not prohibited or restricted by laws and regulations) Licensed projects: construction projects; Construction labor subcontracting; Construction professional operations (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 permits). Core products: Full-Length Insulation Gasket, Glass Wool Insulation Board, Rock Wool Board

TOP10
Langfang Hongou Energy saving Technology Co., Ltd
Overall Score4.3 / 5
Est. Date2025-06-06
Registered Capital500K CNY

Langfang Hongou Energy saving Technology Co., Ltd., with its registered address at No. 076, Lane 9, Zhongjie, Wangyuantou Village, Litan Town, Dacheng County, Langfang City, Hebei Province, is registered with the Market Supervision and Administration Bureau of Dacheng County, Langfang City. The legal representative is Ma Dongfang, and the business scope includes general projects such as technical services, technical development, technical consulting, technical exchanges, technology transfer, and technology promotion; Manufacturing of insulation and soundproofing materials; Sales of insulation and soundproofing materials; Production of refractory materials; Sales of refractory materials; Manufacturing of asbestos products; Sales of asbestos products; Sales of coatings (excluding hazardous chemicals); Sales of insulation materials; Rubber product manufacturing; Sales of rubber products; Manufacturing of building waterproofing membrane products; Sales of building waterproofing membrane products; Manufacturing of sealing fillers; Sales of sealing fillers; Sealing component manufacturing; Sales of seals; Sales of high-performance sealing materials; Manufacturing of plastic products; Sales of plastic products; Production of fireproof sealing materials; Sales of fireproof sealing materials; Manufacturing of lightweight building materials; Sales of lightweight building materials; Sales of building materials; Manufacturing of asbestos cement products; Sales of asbestos cement products; Manufacturing of cement products; Sales of cement products; Manufacturing of non-metallic mineral products; Sales of non-metallic minerals and products; Manufacturing of graphite and carbon products; Sales of graphite and carbon products; Manufacturing of ecological environment materials; Sales of ecological environment materials; Sales of anti-corrosion materials; Sales of chemical products (excluding licensed chemical products); Sales of synthetic materials; Retail of hardware products; Sales of metal products (except for projects that require approval according to law, independently conducting business activities that are not prohibited or restricted by laws and regulations). Core products: Full-Length Insulation Gasket, Centrifugal Glass Fiber Cotton, Micro Porous Siliceous Polystyrene Board

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Hebei Ruide Energy saving Technology Co., Ltd2022-06-09Full-Length Insulation Gasket, Glass Wool Insulation Board, Glass Wool Board10000K CNYNot Supported
Langfang Paiheng Energy saving Technology Co., Ltd2023-05-16Full-Length Insulation Gasket, Rock Wool Board, Cement Foam Board3000K CNYSupported
Langfang Yihang Energy saving Technology Co., Ltd2023-03-07Full-Length Insulation Gasket, Aluminum Silicate, Waterproof Backing Board3660K CNYNot Supported
Langfang Newshi Thermal Insulation Materials Co., Ltd2025-03-10Full-Length Insulation Gasket, Ceramic Fiber Sealing Strip, Rock Wool Board500K CNYSupported
Langfang Jianji Energy saving Technology Co., Ltd2025-08-04Full-Length Insulation Gasket, Multi Functional Waterproof Backing Board, Rubber And Plastic Board500K CNYSupported
Langfang Puzhe Energy saving Technology Co., Ltd2023-04-18Full-Length Insulation Gasket, Aluminum Silicate Insulation Roll Felt, Aluminum Silicate Fiber Blanket3000K CNYNot Supported
Langfang Yiqing Thermal Insulation Materials Co., Ltd2021-01-28Full-Length Insulation Gasket, Foamed Cement, Foam Glass2000K CNYNot Supported
Hebei Huanjiu Energy saving Technology Co., Ltd2024-12-24Full-Length Insulation Gasket, Centrifugal Glass Wool Board, Insulation Board3000K CNYNot Supported
Langfang Guyuan Supply Chain Co., Ltd2025-03-11Full-Length Insulation Gasket, Glass Wool Insulation Board, Rock Wool Board500K CNYSupported
Langfang Hongou Energy saving Technology Co., Ltd2025-06-06Full-Length Insulation Gasket, Centrifugal Glass Fiber Cotton, Micro Porous Siliceous Polystyrene Board500K CNYNot Supported

Purchasing Guide

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

  • In the actual procurement process of full-length insulation gaskets, it is recommended to prioritize confirming key technical parameters such as temperature resistance range, thickness tolerance, and thermal conductivity to ensure compatibility with the thermal expansion requirements of equipment or pipelines. For example, high-temperature pipeline sealing scenarios usually require gaskets to withstand working conditions above 300 ℃ for a long time.
  • When selecting suppliers, priority should be given to indicators such as product compatibility, business qualifications, enterprise activity, industry performance, and industry data support. Such suppliers usually provide more stable batch supply capabilities. Long distance insulation gaskets are commonly used in continuous operations such as petrochemicals and electricity, and their supply stability directly affects the operational efficiency of production lines.
  • For different application scenarios such as boiler flange sealing or reactor insulation layer, it is necessary to distinguish between using fiber-reinforced or metal composite full-length insulation gaskets. The former is suitable for dynamic sealing at medium and low temperatures, while the latter is more suitable for static connection at high pressure and high temperature.
  • It is recommended to compare prices based on industry standard specifications (such as ASTM or GB standards) during procurement, while also paying attention to whether the supplier provides a complete product testing report. The compression rebound rate and other parameters of the full-length insulation gasket have a significant impact on the sealing performance, which needs to be verified through measured data.

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