Updated Sep 11, 2026 · Public platform & industry data

Sep 11, 2026 Updated

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2026 Top 10 Directly Buried Insulated Steel Pipe Manufacturers in China

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

The top 10 Directly Buried Insulated Steel Pipe manufacturers in China for 2026 are: Cangzhou Huadun Pipeline Technology Co., Ltd, Cangzhou Jianghong Pipeline Equipment Co., Ltd, Hebei Hengtai Pipeline Technology Co., Ltd, Cangzhou Huadun Anti corrosion and Insulation Engineering Co., Ltd, Cangzhou Hourong Pipeline Anti corrosion and Insulation Co., Ltd, Shandong Shengbao Pipeline Technology Co., Ltd, Hebei Shantuo Energy saving Technology Co., Ltd, Cangzhou Tuocheng Pipeline Equipment Co., Ltd, Cangzhou Dashengchang Pipeline Co., Ltd, Cangzhou Guangyi Pipeline Manufacturing 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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Cangzhou Huadun Pipeline Technology Co., Ltd
Overall Score4.9 / 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: Directly Buried Insulated Steel Pipe, Hot Dip Plastic Conduit, Spiral Steel Pipe

Top 2
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Cangzhou Jianghong Pipeline Equipment Co., Ltd
Overall Score4.8 / 5
Est. Date2020-05-15
Registered Capital23000K CNY

Cangzhou Jianghong Pipeline Equipment Co., Ltd., with its registered address in Jiajin Village, Mengdian Township, Yanshan County, is registered with the Market Supervision Administration of Yanshan County. The legal representative is Li Ruilan, and its business scope includes spiral steel pipes, straight seam steel pipes, seamless steel pipes, petroleum casings, anti-corrosion steel pipes, polyurethane insulation steel pipes, 3pe anti-corrosion steel pipes, TPEP anti-corrosion steel pipes, epoxy powder steel pipes, coated composite pipes, non-toxic drinking water steel pipes, hot-dip plastic cable threading protection pipes, fire coated steel pipes, resin composite steel pipes for coal mines, pipeline pipes, insulation pipes, alloy pipes, stainless steel fittings, anti-corrosion insulation materials, and pipeline equipment accessories; Sales of pipes, boards, wires, power plant accessories, pipeline accessories, anti-corrosion and insulation pipe fittings, pipeline construction and installation, anti-corrosion and insulation engineering construction, heating pipe network design and construction. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Directly Buried Insulated Steel Pipe, Aluminum Alloy Lined Plastic Pipe, Flange

Top 3
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Hebei Hengtai Pipeline Technology Co., Ltd
Overall Score4.8 / 5
Est. Date2018-09-30
Registered Capital50000K CNY

Hebei Hengtai Pipeline Technology Co., Ltd., with its registered address located in Zhenggang Park, Yanshan Economic Development Zone, is registered with the Market Supervision Administration of Yanshan County and represented by Wang Junhai as its legal representative. Its business scope includes the research and utilization of pipeline coating, anti-corrosion, and insulation technologies; Production of steel pipes, fittings, flange series products, coated steel pipes, anti-corrosion steel pipes, insulated steel pipes, hot-dip plastic cable conduits, TPEP anti-corrosion steel pipes, anti-corrosion materials, insulation materials and high-density polyethylene outer protective sleeves, wear-resistant, ductile iron and other pipelines and pipeline accessories, transportation facilities, sign posts, pump pipes, concrete pump accessories, fabric dispensers, supports and hangers, rubber hoses, plates, wires, profiles, compensators, valves and pressure vessels; Selling steel pipes, sports equipment, machine tool accessories, hardware products, mechanical conveyors, and accessories. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Directly Buried Insulated Steel 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: Directly Buried Insulated Steel Pipe, Coated Steel Pipes For Coal Mines, Ipn8710 Anti-Corrosion Steel Pipe

TOP5
Cangzhou Hourong Pipeline Anti corrosion and Insulation Co., Ltd
Overall Score4.7 / 5
Est. Date2019-11-14
Registered Capital91000K CNY

Cangzhou Hourong Pipeline Anti corrosion and Insulation Co., Ltd. is located at No. 156, Lijiapu Village, Wulongtang Township, Cangxian County, Cangzhou City, Hebei Province. It was established on November 14, 2019, with the registration authority being Cangxian Market Supervision Administration and the legal representative being Li Xiaoyang. Core products: Directly Buried Insulated Steel Pipe, Anti-Corrosion Steel Pipe, Steel Pipe

TOP6
Shandong Shengbao Pipeline Technology Co., Ltd
Overall Score4.6 / 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: Directly Buried Insulated Steel Pipe, Fiberglass Chimney, Insulated Pipeline

TOP7
Hebei Shantuo Energy saving Technology Co., Ltd
Overall Score4.6 / 5
Est. Date2018-05-03
Registered Capital25000K CNY

Hebei Shantuo Energy saving Technology Co., Ltd., with its registered address in Guowangzhibao 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 Yang Lijie, 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; Manufacturing of fiberglass and related products; Sales of fiberglass and related products; Manufacturing of cement products; Sales of cement products; Manufacturing of sealing fillers; Sales of sealing fillers; Manufacturing of ecological environment materials; Sales of ecological environment materials; Manufacturing of synthetic materials (excluding hazardous chemicals); Sales of synthetic materials; Paint manufacturing (excluding hazardous chemicals); Sales of coatings (excluding hazardous chemicals); Manufacturing of lightweight building materials; Sales of lightweight building materials; Manufacturing of plastic products; Sales of plastic products; Rubber product manufacturing; Sales of rubber products; Production of fireproof sealing materials; Sales of fireproof sealing materials; Production of refractory materials; Sales of refractory materials; Sales of anti-corrosion materials; Sales of chemical products (excluding licensed chemical products); Sales of metal materials; Sales of building materials; Operation of wires and cables; Sales of mining machinery; Retail of hardware products; Sales of mechanical equipment; Sales of mechanical parts and components; Sales of metal ores; Sales of security equipment; Sales of firefighting equipment; Specialized equipment repair; Electronic and mechanical equipment maintenance (excluding special 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 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: Directly Buried Insulated Steel Pipe, Lightweight Aggregate Concrete, Polyurethane Insulation Pipe

TOP8
Cangzhou Tuocheng Pipeline Equipment Co., Ltd
Overall Score4.6 / 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: Directly Buried Insulated Steel Pipe, Plastic-Coated Steel Pipe, 3Pe Anti-Corrosion Steel Pipe

TOP9
Cangzhou Dashengchang Pipeline Co., Ltd
Overall Score4.4 / 5
Est. Date2015-09-11
Registered Capital5000K CNY

Cangzhou Dashengchang Pipeline Co., Ltd., registered at 35-108 Xingye Road, Cangzhou Economic Development Zone, registered with the Market Supervision and Administration Bureau of Cangzhou Economic Development Zone, with Lu Junxian as the legal representative. Its business scope includes wholesale and retail of steel, pipes, instruments, hardware, building materials (excluding sand and gravel), anti-corrosion materials, and insulation materials (projects that require approval by law can only be carried out after approval by relevant departments). Core products: Directly Buried Insulated Steel Pipe, Insulated Steel Pipe

TOP10
Cangzhou Guangyi Pipeline Manufacturing Co., Ltd
Overall Score4.3 / 5
Est. Date2023-03-29
Registered Capital50000K CNY

Cangzhou Guangyi Pipeline Manufacturing Co., Ltd., with its registered address in Yemaoli Village, Wangshu Town, Yanshan County, is registered with the Yanshan County Market Supervision and Administration Bureau. Its legal representative is He Kangle, and its business scope includes general projects such as building decoration, manufacturing of plumbing pipe parts and other metal products for construction; Manufacturing of metal fittings for construction; Manufacturing of metal products for safety and firefighting purposes; Metal surface treatment and heat treatment processing; Steel rolling processing; Sales of insulation materials; Sales of steel reinforcement products for construction; Sales of non-ferrous metal alloys. (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: Directly Buried Insulated Steel Pipe, Anti-Corrosion Steel Pipe, Insulated Steel Pipe

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Cangzhou Huadun Pipeline Technology Co., Ltd2021-05-18Directly Buried Insulated Steel Pipe, Hot Dip Plastic Conduit, Spiral Steel Pipe100000K CNYNot Supported
Cangzhou Jianghong Pipeline Equipment Co., Ltd2020-05-15Directly Buried Insulated Steel Pipe, Aluminum Alloy Lined Plastic Pipe, Flange23000K CNYSupported
Hebei Hengtai Pipeline Technology Co., Ltd2018-09-30Directly Buried Insulated Steel Pipe, Plastic-Coated Steel Pipe, Hot Dip Plastic Conduit50000K CNYNot Supported
Cangzhou Huadun Anti corrosion and Insulation Engineering Co., Ltd2009-03-20Directly Buried Insulated Steel Pipe, Coated Steel Pipes For Coal Mines, Ipn8710 Anti-Corrosion Steel Pipe51000K CNYSupported
Cangzhou Hourong Pipeline Anti corrosion and Insulation Co., Ltd2019-11-14Directly Buried Insulated Steel Pipe, Anti-Corrosion Steel Pipe, Steel Pipe91000K CNYNot Supported
Shandong Shengbao Pipeline Technology Co., Ltd2017-08-04Directly Buried Insulated Steel Pipe, Fiberglass Chimney, Insulated Pipeline108160K CNYSupported
Hebei Shantuo Energy saving Technology Co., Ltd2018-05-03Directly Buried Insulated Steel Pipe, Lightweight Aggregate Concrete, Polyurethane Insulation Pipe25000K CNYSupported
Cangzhou Tuocheng Pipeline Equipment Co., Ltd2017-07-25Directly Buried Insulated Steel Pipe, Plastic-Coated Steel Pipe, 3Pe Anti-Corrosion Steel Pipe18880K CNYSupported
Cangzhou Dashengchang Pipeline Co., Ltd2015-09-11Directly Buried Insulated Steel Pipe, Insulated Steel Pipe5000K CNYSupported
Cangzhou Guangyi Pipeline Manufacturing Co., Ltd2023-03-29Directly Buried Insulated Steel Pipe, Anti-Corrosion Steel Pipe, Insulated Steel Pipe50000K CNYNot Supported

Purchasing Guide

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

  • For procurement requirements that require the use of directly buried insulated steel pipes, it is recommended to prioritize checking key technical parameters such as pipe diameter, insulation layer thickness, and temperature resistance range to ensure compatibility with specific scenarios such as municipal heating or oil transportation.
  • When selecting suppliers, priority should be given to product compatibility, business qualifications, enterprise activity, industry performance, and companies with industry data support. Such suppliers can usually provide more stable underground direct burial engineering solutions.
  • In corrosive environments such as chemical industrial parks or long-distance thermal pipelines, attention should be paid to the material and compressive strength of the outer protective pipe of directly buried insulated steel pipes to avoid insulation performance degradation caused by environmental factors.
  • There are significant differences in the prefabrication requirements for directly buried insulated steel pipes in different application scenarios. For example, welding processes need to be considered for centralized heating pipelines, while continuous verification of high temperature resistance is required for industrial steam pipelines.

Knowledge Base

Q

How to choose a good steel sleeve and insulation pipe? The steel sleeve steel insulation pipe is composed of a working steel pipe for conveying medium, a glass wool insulation layer, an aluminum foil reflection layer, a stainless steel fastening belt, a sliding guide bracket, an air insulation layer, an outer protective steel pipe, and an outer anti-corrosion layer, which are sequentially combined outward through equipment. Protect the outer steel pipe from corrosive substances and prolong its service life.

Q

Baidu Love Sourcing will find pictures of different types of foam directly buried thermal insulation steel pipes to show you the diversity and uniqueness of foam directly buried thermal insulation steel pipes. At the same time, we also recommend high-quality foam directly buried thermal insulation steel pipes for you, so that you can find the most suitable foam directly buried thermal insulation steel pipes more conveniently and quickly when you choose.

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