Updated Sep 9, 2026 · Public platform & industry data

Sep 9, 2026 Updated

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2026 Top 10 Polyurethane Foam Buried Pipe Manufacturers in China

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Top-rated Polyurethane Foam Buried Pipe suppliers, How to choose a Polyurethane Foam Buried Pipe manufacturer, Best Polyurethane Foam Buried Pipe companies in China

The top 10 Polyurethane Foam Buried Pipe manufacturers in China for 2026 are: Langfang Wanhui Thermal Insulation Materials Co., Ltd, Langfang Ouliang Thermal Insulation Materials Co., Ltd, Cangzhou Huadun Pipeline Technology Co., Ltd, Cangzhou Huadun Anti corrosion and Insulation Engineering Co., Ltd, Shandong Shengbao Pipeline Technology Co., Ltd, Chengdu Lorek New Material Manufacturing Co., Ltd, Cangzhou Tianhe Yuan Pipeline Co., Ltd, Cangzhou Guangyi Pipeline Manufacturing Co., Ltd, Cangzhou Tuocheng Pipeline Equipment Co., Ltd, Cangzhou Haocheng Pipeline 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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Langfang Wanhui Thermal Insulation Materials Co., Ltd
Overall Score4.9 / 5
Est. Date2024-02-19
Registered Capital1000K CNY

Langfang Wanhui Thermal Insulation Materials Co., Ltd., with its registered address in Shijiawu Village, Quancun 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 Shi Haicheng, and the business scope includes general projects: manufacturing of thermal insulation and sound insulation materials; Sales of insulation and soundproofing materials; Sales of engineering plastics and synthetic resins; Manufacturing of plastic products; Sales of plastic products; Production of fireproof sealing materials; Sales of fireproof sealing materials; Manufacturing of asbestos products; Sales of asbestos products; Sales of insulation materials; Sales of building materials; Manufacturing of lightweight building materials; Sales of lightweight building materials; Manufacturing of biobased materials; Sales of biobased materials; Sales of synthetic materials; Manufacturing of technical glass products; Sales of technical glass products; Manufacturing of cement products; Sales of cement products; Sales of coatings (excluding hazardous chemicals); Sales of chemical products (excluding licensed chemical products); Sales of building decoration materials; Sales of building waterproofing membrane products; Sales of sealing fillers; Sales of anti-corrosion materials; Sales of fiberglass and related products; Sales of rubber products; Sales of metal products; Sales of metal 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 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: Polyurethane Foam Buried Pipe, Siliceous Board, Phenolic Composite Air Duct

Top 2
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Langfang Ouliang Thermal Insulation Materials Co., Ltd
Overall Score4.8 / 5
Est. Date2020-12-23
Registered Capital500K CNY

Langfang Ouliang Thermal Insulation Materials Co., Ltd., with its registered address in Da Shangtun Town, Dacheng County, Langfang City, Hebei Province, is registered with the Market Supervision Administration of Dacheng County, Langfang City. The legal representative is Xu Falong, and its business scope includes the manufacturing and sales of thermal insulation and sound insulation materials, as well as the manufacturing and sales of plastic processing equipment; Sales of chemical products (excluding licensed chemical products), sales of metal materials, sales of building materials, and sales of plastic products; Construction project construction. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Polyurethane Foam Buried Pipe, Polyurethane Composite Material, Overhead Galvanized Iron Sheet Insulation Pipe

Top 3
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Cangzhou Huadun Pipeline Technology Co., Ltd
Overall Score4.8 / 5
Est. Date2021-05-18
Registered Capital100000K CNY

Cangzhou Huadun Pipeline Technology Co., Ltd. is located in the economic development zone of Yanshan County, Cangzhou City, Hebei Province, on the south side of Puyang Road East Section. It was established on May 18, 2021, with the registration authority of Yanshan County Market Supervision Administration and the legal representative being Liu Zhenhong. Core products: Polyurethane Foam Buried Pipe, Plastic-Coated Steel Pipe, Hot Dip Plastic Conduit

TOP4
Cangzhou Huadun Anti corrosion and Insulation Engineering Co., Ltd
Overall Score4.7 / 5
Est. Date2009-03-20
Registered Capital51000K CNY

Cangzhou Huadun Anti corrosion and Insulation Engineering Co., Ltd., with its registered address at No. 3, West of Zhengyuan Street, Zhenggang Park, Economic Development Zone, Yanshan County, Cangzhou City, Hebei Province, is registered with the Market Supervision Administration of Yanshan County. The legal representative is Jia Zhenfeng, and its business scope includes general projects such as production and sales of anti-corrosion and insulation engineering; Steel pipes, insulation materials, pipelines and pipeline fittings, pipes, plates, and steel materials. (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: Polyurethane Foam Buried Pipe, Coated Steel Pipes For Coal Mines, Fire Protection Coated Steel Pipe

TOP5
Shandong Shengbao Pipeline Technology Co., Ltd
Overall Score4.7 / 5
Est. Date2017-08-04
Registered Capital108160K CNY

Shandong Shengbao Pipeline Technology Co., Ltd., with its registered address located at the north of Xishou Road, Jinshan Street, Xin'an Street, Anqiu City, Weifang City, Shandong Province, is registered with the Anqiu Market Supervision Administration Bureau. The legal representative is Wang Zengfeng, and the business scope includes general projects such as metal surface treatment and heat treatment processing; Manufacturing of glass fiber reinforced plastic products; Sales of glass fiber reinforced plastic products; Manufacturing of fiberglass and related products; Sales of fiberglass and related products; Manufacturing of plastic products; Sales of plastic products; Manufacturing of metal structures; Sales of metal structures; Manufacturing of metal materials; Sales of metal products; Manufacturing of instruments and meters; Sales of instruments and meters; Instrument and meter repair; Sales of engineering plastics and synthetic resins; Manufacturing of power transmission, distribution and control equipment; Sales of intelligent power transmission and distribution and control equipment; Production of chemical products (excluding licensed chemical products); Sales of chemical products (excluding licensed chemical products); Installation services for ordinary mechanical equipment; Research and development of emerging energy technologies; Research and development of resource recycling technology; Promotion services for new material technology; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Manufacturing of specialized equipment for environmental protection; Sales of specialized equipment for environmental protection; 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; Manufacturing of special 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: Polyurethane Foam Buried Pipe, Insulated Pipeline, Frp Pipe

TOP6
Chengdu Lorek New Material Manufacturing Co., Ltd
Overall Score4.6 / 5
Est. Date2019-07-25
Registered Capital10000K CNY

Chengdu Luoruike New Material Manufacturing Co., Ltd., registered at No. 102, Group 16, Longfu Village, Shengping Town, Pengzhou City, Sichuan Province, with the registration authority of Pengzhou Market Supervision Administration and the legal representative of Xu Chunjie, engages in the design, research and development, production, and sales of buried insulation pipes; Sales: chemical products (excluding hazardous chemicals), electronic products, sealing materials, mechanical equipment and accessories, metal materials, hardware products, rubber products, building materials (excluding sand and gravel); Construction of anti-corrosion and insulation engineering; Professional cleaning services for mechanical equipment. Projects that require approval by law can only be operated after approval by relevant departments.. Core products: Polyurethane Foam Buried Pipe, , Insulated Steel Pipe

TOP7
Cangzhou Tianhe Yuan Pipeline Co., Ltd
Overall Score4.6 / 5
Est. Date2017-10-26
Registered Capital15800K CNY

Cangzhou Tianhe Yuan Pipeline Co., Ltd., with its registered address in Jiajin Village, Mengdian Township, Yanshan County, is registered with the Market Supervision Administration of Yanshan County, and its legal representative is Jia Shixing. Its business scope includes the sales of steel pipes, fittings, anti-corrosion and insulation pipelines, pipeline accessory series products, anti-corrosion steel pipes, insulation steel pipes, polyurethane insulation pipes, prefabricated buried insulation pipes, steel sleeve steam insulation pipes, 3PE anti-corrosion steel pipes, anti-corrosion pipelines for water supply and drainage, heat, electricity, oil and gas, anti-corrosion and insulation processing, power plant accessories, plastic coating, lining, hot-dip plastic composite pipes, cable protection pipes, metal products, plastic products, anti-corrosion and insulation materials, steel, plates, alloys, stainless steel pipes, and fittings, as well as the import and export business of the above commodities. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Polyurethane Foam Buried Pipe, Plastic-Coated Steel Pipe, Anti-Corrosion Steel Pipe

TOP8
Cangzhou Guangyi Pipeline Manufacturing Co., Ltd

Yemaoli Village, Wangshu Town, Yanshan County

Overall Score4.6 / 5
Est. Date2023-03-29
Registered Capital50000K CNY

Cangzhou Guangyi Pipeline Manufacturing Co., Ltd., located in Yemaoli Village, Wangshu Town, Yanshan County, was established on March 29, 2023. The registered authority is the Yanshan County Market Supervision Administration, and the legal representative is He Kangle. Core products: Polyurethane Foam Buried Pipe, Anti-Corrosion Steel Pipe, Insulated Steel Pipe

TOP9
Cangzhou Tuocheng Pipeline Equipment Co., Ltd
Overall Score4.4 / 5
Est. Date2017-07-25
Registered Capital18880K CNY

Cangzhou Tuocheng Pipeline Equipment Co., Ltd. is registered in Puwacheng Park, Yanshan Economic Development Zone, Hebei Province. The registration authority is the Market Supervision Administration of Yanshan County, and the legal representative is Xie Yuxin. The business scope includes the sales of steel pipes, fittings, polyurethane insulation pipes, anti-corrosion steel pipes, coated steel pipes, 3PE anti-corrosion steel pipes, TPEP anti-corrosion steel pipes, steel sleeve steel steam insulation pipes, hot-dip plastic cable threading protection pipes, epoxy coal tar anti-corrosion steel pipes, non-toxic drinking water anti-corrosion steel pipes, resin composite steel pipes for coal mines, stainless steel pipes, pipeline pipes, alloy pipes, anti-corrosion insulation materials, pipes and pipeline accessories, elbows, flanges, plates, wires, profiles, power plant accessories, valves and pressure vessels, as well as the construction and installation of pipelines and anti-corrosion and insulation engineering. Design and construction of heating pipeline network. (For projects that require approval according to law, business activities can only be carried out after approval by relevant departments; for general business projects, business activities can be carried out independently according to law). Core products: Polyurethane Foam Buried Pipe, 8710 Anti-Corrosion Steel Pipe, Spiral Steel Pipe

TOP10
Cangzhou Haocheng Pipeline Co., Ltd
Overall Score4.3 / 5
Est. Date2015-04-24
Registered Capital30000K CNY

Cangzhou Haocheng Pipeline Co., Ltd. is registered in Changjin Village, Mengdian Township, Yanshan County. The registration authority is the Market Supervision Administration of Yanshan County, and the legal representative is Wang Yajun. The business scope includes general projects: production and sales of pipeline fittings, fittings, flanges, pipe plates, manholes, pipe supports, hangers, spiral steel pipes, straight seam steel pipes, seamless steel pipes, insulated steel pipes, polyurethane insulated pipes, steel sleeve steam insulated pipes, anti-corrosion steel pipes, coated pipes, acoustic measuring pipes, threading pipes, pile driving pipes, wear-resistant pipeline fittings, compensators, insulated joints, insulated flanges, hood type ventilation caps, bent pipes, heads, chemical power plant accessories, pipeline connection 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: Polyurethane Foam Buried Pipe, Pipe Support, Insulating Joint

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Langfang Wanhui Thermal Insulation Materials Co., Ltd2024-02-19Polyurethane Foam Buried Pipe, Siliceous Board, Phenolic Composite Air Duct1000K CNYNot Supported
Langfang Ouliang Thermal Insulation Materials Co., Ltd2020-12-23Polyurethane Foam Buried Pipe, Polyurethane Composite Material, Overhead Galvanized Iron Sheet Insulation Pipe500K CNYSupported
Cangzhou Huadun Pipeline Technology Co., Ltd2021-05-18Polyurethane Foam Buried Pipe, Plastic-Coated Steel Pipe, Hot Dip Plastic Conduit100000K CNYNot Supported
Cangzhou Huadun Anti corrosion and Insulation Engineering Co., Ltd2009-03-20Polyurethane Foam Buried Pipe, Coated Steel Pipes For Coal Mines, Fire Protection Coated Steel Pipe51000K CNYSupported
Shandong Shengbao Pipeline Technology Co., Ltd2017-08-04Polyurethane Foam Buried Pipe, Insulated Pipeline, Frp Pipe108160K CNYSupported
Chengdu Lorek New Material Manufacturing Co., Ltd2019-07-25Polyurethane Foam Buried Pipe, , Insulated Steel Pipe10000K CNYNot Supported
Cangzhou Tianhe Yuan Pipeline Co., Ltd2017-10-26Polyurethane Foam Buried Pipe, Plastic-Coated Steel Pipe, Anti-Corrosion Steel Pipe15800K CNYSupported
Cangzhou Guangyi Pipeline Manufacturing Co., Ltd2023-03-29Polyurethane Foam Buried Pipe, Anti-Corrosion Steel Pipe, Insulated Steel Pipe50000K CNYNot Supported
Cangzhou Tuocheng Pipeline Equipment Co., Ltd2017-07-25Polyurethane Foam Buried Pipe, 8710 Anti-Corrosion Steel Pipe, Spiral Steel Pipe18880K CNYSupported
Cangzhou Haocheng Pipeline Co., Ltd2015-04-24Polyurethane Foam Buried Pipe, Pipe Support, Insulating Joint30000K CNYSupported

Knowledge Base

Q

Horizontal foaming (middle opening pouring) operation mode: place the insulation pipe horizontally, open the middle opening for pouring, and the foam will foam toward both ends after material injection. Density control: The density of polyurethane foam can reach the expected requirements by controlling the injection parameters of the polyurethane foaming machine. Disadvantages: The polyurethane rigid foam insulation layer may have bubbles and long holes.

Q

What are the specifications for directly buried foam insulated polyurethane spiral pipes

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