Updated Oct 4, 2026 · Public platform & industry data

Oct 4, 2026 Updated

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2026 Top 10 Polyurethane Buried Pipe Manufacturers in China

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

The top 10 Polyurethane Buried Pipe manufacturers in China for 2026 are: Langfang Ouliang Thermal Insulation Materials Co., Ltd, Cangzhou Huadun Anti corrosion and Insulation Engineering Co., Ltd, Tangshan Xingbang Pipeline Engineering Equipment Co., Ltd, Shandong Shengbao Pipeline Technology Co., Ltd, Langfang Wanfu Thermal Insulation Materials Co., Ltd, Langfang Chengrui Lianlong Thermal Insulation Engineering Co., Ltd, Cangzhou Huadun Pipeline Technology Co., Ltd, Cangzhou Tianhe Yuan Pipeline Co., Ltd, Cangzhou Tuocheng Pipeline Equipment Co., Ltd, Cangzhou Huiyu Pipeline Equipment 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 Ouliang Thermal Insulation Materials Co., Ltd
Overall Score4.9 / 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 Buried Pipe, Corrosion-Resistant Pipeline, Polyurethane Insulation Pipe, Prefabricated Buried Insulation Pipe

Top 2
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Cangzhou Huadun Anti corrosion and Insulation Engineering Co., Ltd
Overall Score4.8 / 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 Buried Pipe, Coated Steel Pipes For Coal Mines, Fire Protection Coated Steel Pipe

Top 3
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Tangshan Xingbang Pipeline Engineering Equipment Co., Ltd
Overall Score4.8 / 5
Est. Date2007-03-21
Registered Capital190000K CNY

Tangshan Xingbang Pipeline Engineering Equipment Co., Ltd., with its registered address located in Houhu Industrial Agglomeration Zone, Yutian County, is registered with the Yutian County Market Supervision and Administration Bureau, and its legal representative is Qiu Huawei. Its business scope includes general projects such as anti-corrosion and insulation pipelines, PE anti-corrosion pipes, PE pipes, PB pipes, PE-RT pipes, PP-R pipes and fittings, elbows, bends, tees, and variable diameter pipes design, manufacturing, sales, and installation; Research and development, manufacturing, sales, and installation of pipeline leak intelligent monitoring system equipment; Design and installation of water supply and drainage engineering; Sales of steel, plastic pellets, chemical products, and chemical raw materials (excluding hazardous chemicals); Industrial design services; Pipeline engineering technical consulting, technical services, and technology transfer; Manufacturing and sales of energy-saving and environmentally friendly equipment, spiral welded pipes; House leasing; Mechanical equipment leasing; Import and export of goods or technology (excluding goods and technology prohibited by the state or subject to administrative approval). (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). (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 Buried Pipe, Spray Wrapped Insulation Pipe, Overhead Steam Insulation Pipe

TOP4
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 Buried Pipe, Insulated Pipeline, Fiberglass Chimney

TOP5
Langfang Wanfu Thermal Insulation Materials Co., Ltd
Overall Score4.7 / 5
Est. Date2005-05-09
Registered Capital100080K CNY

Langfang Wanfu Thermal Insulation Materials Co., Ltd., with its registered address in Zhaojiawu Village, Dacheng County, Langfang City, is registered with the Market Supervision and Administration Bureau of Dacheng County, Langfang City. The legal representative is Xu Weiqing, and the business scope includes general projects: manufacturing of thermal insulation and sound insulation materials; Sales of insulation and soundproofing materials; Manufacturing of plastic products; Sales of plastic products; Manufacturing of architectural decoration, plumbing components, and other metal products for building use; Installation services for ordinary mechanical equipment; Manufacturing of asbestos cement products; Sales of asbestos cement products; Manufacturing of asbestos products; Sales of asbestos products; Manufacturing of non-metallic mineral products; Sales of non-metallic minerals and products; Sales of insulation materials; Manufacturing of lightweight building materials; Sales of lightweight building materials; Sales of building waterproofing membrane products; Sales of coatings (excluding hazardous chemicals); Retail of hardware products; Import and export of goods; Technology import and export (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; Power supply business; Power generation business, transmission business, and power supply (distribution) business; Installation, maintenance, and testing of power transmission, supply, and receiving facilities (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: Polyurethane Buried Pipe, Polyurethane Pipe Shell, Pert Insulation Pipe

TOP6
Langfang Chengrui Lianlong Thermal Insulation Engineering Co., Ltd
Overall Score4.6 / 5
Est. Date2013-01-14
Registered Capital6000K CNY

Langfang Chengrui Lianlong Thermal Insulation Engineering Co., Ltd., with its registered address in Daliuhe Village, Dacheng County, registered with the Market Supervision and Administration Bureau of Dacheng County, Langfang City, and represented by Tian Ruibiao as its legal representative. Its business scope includes licensed projects such as construction engineering (projects that require approval according to law can only be carried out after approval by relevant departments, and specific business projects are subject to approval documents or licenses), and general projects such as manufacturing of insulation and sound insulation materials; Sales of insulation and soundproofing materials; Sales of metal products; Sales of metal materials; Sales of plastic products; Sales of chemical products (excluding licensed chemical products); Sales of insulation materials; Sales of seals; Sales of sealing fillers; Sales of fiberglass and related products; Sales of cement products; Sales of synthetic materials (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: Polyurethane Buried Pipe, Aluminum Silicate, Rubber And Plastic

TOP7
Cangzhou Huadun Pipeline Technology Co., Ltd
Overall Score4.6 / 5
Est. Date2021-05-18
Registered Capital100000K CNY

Cangzhou Huadun Pipeline Technology Co., Ltd., with its registered address located at the south of Puyang Road East Section, Economic Development Zone, Yanshan County, Cangzhou City, Hebei Province, is registered with the Market Supervision Administration of Yanshan County. The legal representative is Liu Zhenhong, and its business scope includes the research and development and utilization of steel pipe anti-corrosion technology; Production of coated composite steel pipes, 3PE anti-corrosion steel pipes, spiral steel pipes, straight seam steel pipes, seamless steel pipes, heating insulation steel pipes, TPEP anti-corrosion steel pipes, hot-dip plastic cable conduit, steel sleeve steam insulation pipes, fire protection coated steel pipes, coated steel pipes for coal mines, pipeline pipes, alloy pipes, stainless steel pipes, fittings, anti-corrosion insulation materials, pipelines and pipeline accessories, pipes, plates, wire steel and sales. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Polyurethane Buried Pipe, Tpep Anti-Corrosion Steel Pipe, 3Pe Anti-Corrosion Steel Pipe

TOP8
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 Buried Pipe, Plastic-Coated Steel Pipe, Steel Sleeve Steel Insulation 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 Buried Pipe, Plastic-Coated Steel Pipe, Hot Dip Plastic Conduit

TOP10
Cangzhou Huiyu Pipeline Equipment Co., Ltd
Overall Score4.3 / 5
Est. Date2018-06-04
Registered Capital20800K CNY

Cangzhou Huiyu Pipeline Equipment Co., Ltd., with its registered address at 2-3-601, Huihe Jiayuan West, Hanqiao Village, Yanshan Town, Yanshan County, is registered with the Yanshan County Market Supervision Administration. The legal representative is Wang Zhongzheng, and its business scope includes wholesale of metals and metal ores. Sales of pipe fittings, flanges, insulated steel pipes, anti-corrosion steel pipes, galvanized pipe fittings, ductile iron steel pipes, plates, corrugated compensators, metal hoses, pump pipes, wear-resistant pipes and pipe fittings, supports and hangers, flow devices, valves, water flow indicators, filters, corrugated compensators, pump pipes, fabric machines, benchmarks, building materials, sports equipment, machine tool accessories, gaskets, hardware products, fiberglass products, leather and fur products. (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 Buried Pipe, Stainless Steel Composite Steel Pipe, Steel Pipe

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Langfang Ouliang Thermal Insulation Materials Co., Ltd2020-12-23Polyurethane Buried Pipe, Corrosion-Resistant Pipeline, Polyurethane Insulation Pipe, Prefabricated Buried Insulation Pipe500K CNYSupported
Cangzhou Huadun Anti corrosion and Insulation Engineering Co., Ltd2009-03-20Polyurethane Buried Pipe, Coated Steel Pipes For Coal Mines, Fire Protection Coated Steel Pipe51000K CNYSupported
Tangshan Xingbang Pipeline Engineering Equipment Co., Ltd2007-03-21Polyurethane Buried Pipe, Spray Wrapped Insulation Pipe, Overhead Steam Insulation Pipe190000K CNYSupported
Shandong Shengbao Pipeline Technology Co., Ltd2017-08-04Polyurethane Buried Pipe, Insulated Pipeline, Fiberglass Chimney108160K CNYSupported
Langfang Wanfu Thermal Insulation Materials Co., Ltd2005-05-09Polyurethane Buried Pipe, Polyurethane Pipe Shell, Pert Insulation Pipe100080K CNYSupported
Langfang Chengrui Lianlong Thermal Insulation Engineering Co., Ltd2013-01-14Polyurethane Buried Pipe, Aluminum Silicate, Rubber And Plastic6000K CNYNot Supported
Cangzhou Huadun Pipeline Technology Co., Ltd2021-05-18Polyurethane Buried Pipe, Tpep Anti-Corrosion Steel Pipe, 3Pe Anti-Corrosion Steel Pipe100000K CNYSupported
Cangzhou Tianhe Yuan Pipeline Co., Ltd2017-10-26Polyurethane Buried Pipe, Plastic-Coated Steel Pipe, Steel Sleeve Steel Insulation Pipe15800K CNYSupported
Cangzhou Tuocheng Pipeline Equipment Co., Ltd2017-07-25Polyurethane Buried Pipe, Plastic-Coated Steel Pipe, Hot Dip Plastic Conduit18880K CNYSupported
Cangzhou Huiyu Pipeline Equipment Co., Ltd2018-06-04Polyurethane Buried Pipe, Stainless Steel Composite Steel Pipe, Steel Pipe20800K CNYSupported

Knowledge Base

Q

Buried polyurethane insulation pipes have been widely used in many fields due to their excellent insulation performance, good waterproofing, and long service life. Central heating field The centralized heating system is an important component of urban infrastructure, and buried polyurethane insulation pipes play a key role in it. In the centralized heating network of the city, hot water needs to come from the heat source

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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