Updated Sep 12, 2026 · Public platform & industry data

Sep 12, 2026 Updated

English
title decor left

2026 Top 10 Directly Buried Insulated Steel Pipe Manufacturers in China

title decor right

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 Jianghong Pipeline Equipment Co., Ltd, Cangzhou Huadun Pipeline Technology Co., Ltd, Cangzhou Huadun Anti corrosion and Insulation Engineering Co., Ltd, Cangzhou Dashengchang Pipeline Co., Ltd, Hengshui Aoyang Thermal Insulation Materials Co., Ltd, Hebei Rengang Pipeline Manufacturing Co., Ltd, Cangzhou Fuou Pipeline Equipment Co., Ltd, Hebei Shantuo Energy saving Technology Co., Ltd, Shandong Shengbao Pipeline Technology Co., Ltd, Cangzhou Hourong Pipeline Anti corrosion and Insulation Co., Ltd. Ranked based on product relevance, certifications, company activity, and industry performance. This list is widely used for supplier comparison and sourcing decisions.

Collapse
Top 1
background image
Cangzhou Jianghong Pipeline Equipment Co., Ltd
Overall Score4.9 / 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, 3Pe Anti-Corrosion Steel Pipe, Flange

Top 2
background image
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: Directly Buried Insulated Steel Pipe, Steel Sleeve Steel Insulation Steel Pipe, Hot Dip Plastic Conduit

Top 3
background image
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: Directly Buried Insulated Steel Pipe, 3Pe Anti-Corrosion Steel Pipe, Ipn8710 Anti-Corrosion Steel Pipe

TOP4
Cangzhou Dashengchang Pipeline Co., Ltd
Overall Score4.7 / 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

TOP5
Hengshui Aoyang Thermal Insulation Materials Co., Ltd
Overall Score4.7 / 5
Est. Date2018-05-23
Registered Capital31000K CNY

Hengshui Aoyang Thermal Insulation Materials Co., Ltd. is registered at No. 16 Guangming Street, Zhaoqiao Town, Wuyi County, Hengshui City, Hebei Province. The registration authority is the Market Supervision Administration of Wuyi County, Hengshui City, and the legal representative is Zhang Jialing. Its business scope includes the manufacturing of thermal insulation and sound insulation materials. Production and sales: high-density polyethylene jacket, polyurethane insulation board, polyurethane insulation pipe, insulation pipe fittings, polyurethane tile shell, polyurethane composite material, steel sleeve steel insulation pipe. Sales: Glass wool products, chemical products (including rubber and plastic products), aluminum silicate products, rock wool products, steel pipes and fittings, thermal pipeline accessories, hardware and electromechanical products. Undertake anti-corrosion and insulation projects. (Except for hazardous chemicals such as flammable, explosive, and easily producible drugs, which are restricted or prohibited by the state). (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, Polyurethane Pipe Shell, Overhead Insulation Pipe

TOP6
Hebei Rengang Pipeline Manufacturing Co., Ltd
Overall Score4.6 / 5
Est. Date2021-12-07
Registered Capital12880K CNY

Hebei Rengang Pipeline Manufacturing Co., Ltd., with its registered address located 50 meters east of Changjin Village intersection in Mengdian Township, Yanshan County, is registered with the Market Supervision Administration of Yanshan County. The legal representative is Wang Xiuhua, and its business scope includes the production of spiral steel pipes, straight seam steel pipes, seamless steel pipes, oil casing pipes, wear-resistant pipes, polyurethane insulation pipes, anti-corrosion steel pipes, plastic lined steel pipes, water supply and drainage composite steel pipes, plastic coated composite pipes, steel sleeve steam insulation pipes, non-toxic drinking water anti-corrosion steel pipes, epoxy coal tar anti-corrosion steel pipes, heavy-duty bimetallic bridge protection pipes, hot-dip plastic cable threading protection pipes, fire protection coated steel pipes, epoxy resin composite steel pipes for coal mines, pipeline pipes, bent pipes, alloy pipes, stainless steel pipes. Pipes, fittings, metal products, anti-corrosion and insulation materials, pipelines and pipeline accessories, sales of hardware products, pipes, plates Wire, steel, valves. (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, Steel Jacketed Steam Insulated Pipeline

TOP7
Cangzhou Fuou Pipeline Equipment Co., Ltd
Overall Score4.6 / 5
Est. Date2021-02-22
Registered Capital28000K CNY

Cangzhou Fuou 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 Wang Zhenzhong, 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 protection coated steel pipes, resin composite steel pipes for coal mines, pipeline pipes, insulation pipes, alloy pipes, stainless steel fittings, bends, elbows, heads, flanges, tees, reducers, insulation joints, power plant accessories, valves, fittings, anti-corrosion insulation materials, pipelines and more. Sales of pipeline fittings, pipes, plates, wires, anti-corrosion and insulation pipe fittings, and pipeline construction and installation. (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, Tpep Anti-Corrosion Steel Pipe, Pipe Fitting

TOP8
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, Glass Flake Adhesive, Lightweight Aggregate Concrete

TOP9
Shandong Shengbao Pipeline Technology Co., Ltd
Overall Score4.4 / 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

TOP10
Cangzhou Hourong Pipeline Anti corrosion and Insulation Co., Ltd
Overall Score4.4 / 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

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Cangzhou Jianghong Pipeline Equipment Co., Ltd2020-05-15Directly Buried Insulated Steel Pipe, 3Pe Anti-Corrosion Steel Pipe, Flange23000K CNYSupported
Cangzhou Huadun Pipeline Technology Co., Ltd2021-05-18Directly Buried Insulated Steel Pipe, Steel Sleeve Steel Insulation Steel Pipe, Hot Dip Plastic Conduit100000K CNYNot Supported
Cangzhou Huadun Anti corrosion and Insulation Engineering Co., Ltd2009-03-20Directly Buried Insulated Steel Pipe, 3Pe Anti-Corrosion Steel Pipe, Ipn8710 Anti-Corrosion Steel Pipe51000K CNYSupported
Cangzhou Dashengchang Pipeline Co., Ltd2015-09-11Directly Buried Insulated Steel Pipe, Insulated Steel Pipe5000K CNYSupported
Hengshui Aoyang Thermal Insulation Materials Co., Ltd2018-05-23Directly Buried Insulated Steel Pipe, Polyurethane Pipe Shell, Overhead Insulation Pipe31000K CNYNot Supported
Hebei Rengang Pipeline Manufacturing Co., Ltd2021-12-07Directly Buried Insulated Steel Pipe, Plastic-Coated Steel Pipe, Steel Jacketed Steam Insulated Pipeline12880K CNYSupported
Cangzhou Fuou Pipeline Equipment Co., Ltd2021-02-22Directly Buried Insulated Steel Pipe, Tpep Anti-Corrosion Steel Pipe, Pipe Fitting28000K CNYSupported
Hebei Shantuo Energy saving Technology Co., Ltd2018-05-03Directly Buried Insulated Steel Pipe, Glass Flake Adhesive, Lightweight Aggregate Concrete25000K CNYSupported
Shandong Shengbao Pipeline Technology Co., Ltd2017-08-04Directly Buried Insulated Steel Pipe, Fiberglass Chimney, Insulated Pipeline108160K CNYSupported
Cangzhou Hourong Pipeline Anti corrosion and Insulation Co., Ltd2019-11-14Directly Buried Insulated Steel Pipe, Anti-Corrosion Steel Pipe, Steel Pipe91000K 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 or platform statistical information. Such suppliers usually perform more stably in long-term cooperation.
  • In highly corrosive environments such as chemical or regional centralized heating, attention should be paid to the material and anti-corrosion performance of the outer protective pipe of directly buried insulated steel pipes to avoid shortening the pipeline life due to environmental factors.
  • When directly buried insulated steel pipes are applied in low-temperature areas, it is recommended to additionally check the thermal conductivity and compressive strength of the insulation material to adapt to the load of frozen soil layers and extreme weather conditions.

Knowledge Base

Q

The selection of directly buried steel sleeve insulated steel pipes requires comprehensive consideration of multiple factors. Firstly, attention should be paid to its material, as high-quality materials have good strength and corrosion resistance. Secondly, the quality of the insulation layer should be examined, including the type of insulation material, thermal conductivity, and closed cell rate. Insulation materials with low thermal conductivity and high closed cell rate have better insulation effects.

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