Updated Oct 25, 2026 · Public platform & industry data

Oct 25, 2026 Updated

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2026 Top 10 Eccentric Variable Diameter Pipe Manufacturers in China

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Top-rated Eccentric Variable Diameter Pipe suppliers, How to choose a Eccentric Variable Diameter Pipe manufacturer, Best Eccentric Variable Diameter Pipe companies in China

The top 10 Eccentric Variable Diameter Pipe manufacturers in China for 2026 are: Foshan Kuankuan Stainless Steel Co., Ltd, Hebei Fangqing Pipeline Manufacturing Co., Ltd, HeCaiShengXin (Shanghai) New Materials Co., Ltd, Cangzhou Oulong Pipeline Equipment Manufacturing Co., Ltd, Shanghai Baiyi Special Materials Co., Ltd, Changzhou Gosman Pipeline Technology Co., Ltd, Cangzhou Hangong Pipeline Equipment Co., Ltd, Mengcun Hui Autonomous County Jiayuecheng Pipe Fitting Co., Ltd, Wuxi Shengqingyuan Metal Products Co., Ltd, Wuxi Yuanhongwang Metal Materials 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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Foshan Kuankuan Stainless Steel Co., Ltd
Overall Score4.9 / 5
Est. Date2011-03-03
Registered Capital30000K CNY

Foshan Kuanyu Stainless Steel Co., Ltd., registered at 1705, 17th floor, Jinhai Creative Center, No. 142 Yuhe Road, Foshan New City, Lecong Community, Lecong Town, Shunde District, Foshan City, Guangdong Province (registered address declared), registered with the Market Supervision Administration of Shunde District, Foshan City, with Huang Kuanming as the legal representative. Its business scope includes general projects: sales of metal fittings for construction; Wholesale of hardware products; Retail of hardware products; Sales of metal materials; Sales of insulation materials; Software development; Network technology services; Research and development of metal products; Research and development of hardware products; Sales of metal structures; Sales of metal products; Sales of metal seals; Mold sales. (Except for projects that require approval according to law, business activities can be carried out independently based on the business license.) Licensed projects: import and export of goods; Technology import and export; Various engineering construction activities.. Core products: Eccentric Variable Diameter Pipe, Stainless Steel Pipe Fittings, Stainless Steel Round Tube

Top 2
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Hebei Fangqing Pipeline Manufacturing Co., Ltd
Overall Score4.7 / 5
Est. Date2013-09-03
Registered Capital10900K CNY

Hebei Fangqing Pipeline Manufacturing Co., Ltd., with its registered address in Puwa Development Zone, Yanshan County, is registered with the Market Supervision and Administration Bureau of Yanshan County, and its legal representative is Zhang Fang. Its business scope includes manufacturing elbows, tees, flanges, reducers, spring supports and hangers, pipe clamps, manholes, anti-corrosion, wear-resistant, insulation pipelines, fittings, filters, metal hoses, insulation joints, insulation flanges, air doors, power plant accessories, rubber soft joints, compensators, and waterproof sleeves. Sales of valves, plumbing fittings, groove fittings, hardware, PE fittings, gaskets, insulation materials, bolts, cable trays, heads, and pipe caps. To engage in the export business of self-produced products and technologies of the enterprise, as well as the import business of machinery, equipment, components, raw materials, and technologies required by the enterprise, except for goods and technologies restricted or prohibited from import and export by the state. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Eccentric Variable Diameter Pipe, Flange, Three-Way

Top 3
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HeCaiShengXin (Shanghai) New Materials Co., Ltd
Overall Score4.7 / 5
Est. Date2011-03-25
Registered Capital10080K CNY

HeCaiShengXin (Shanghai) New Materials Co., Ltd., with its registered address at Building 4 and Building 5, No. 888 Huide Road, Waigang Town, Jiading District, Shanghai, is registered with the Jiading District Market Supervision Administration. The legal representative is Xiong Jiehua, and its business scope includes general projects such as new material technology research and development; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Manufacturing of plastic products; Sales of plastic products; Sales of building materials; Sales of building decoration materials; Sales of steel reinforcement products for construction; Sales of synthetic materials; Sales of sanitary ware; Sales of mechanical equipment; Sales of chemical products (excluding licensed chemical products); Sales of rubber products; Retail of hardware products; Sales of metal products; Electronic product sales. (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: Eccentric Variable Diameter Pipe, Pipes And Fittings, Frpp Flange Connection Silent Drainage Pipeline System

TOP4
Cangzhou Oulong Pipeline Equipment Manufacturing Co., Ltd

Across from Xinxing Furniture, 283 Provincial Road, Cangyan Road, Yanshan County

Overall Score4.6 / 5
Est. Date2020-12-22
Registered Capital28000K CNY

Cangzhou Oulong Pipeline Equipment Manufacturing Co., Ltd. is located opposite Xinxing Furniture on Cangyan Road 283 Provincial Road in Yanshan County. It was established on December 22, 2020, with the registration authority of Yanshan County Market Supervision Administration and the legal representative being Bi Qiuxia. Core products: Eccentric Variable Diameter Pipe, Wear-Resistant Elbow,

TOP5
Shanghai Baiyi Special Materials Co., Ltd
Overall Score4.6 / 5
Est. Date2019-01-02
Registered Capital8000K CNY

Shanghai Baiyi Special Materials Co., Ltd., with its registered address at 4399 Shenshen Road, Chedun Town, Songjiang District, Shanghai, is registered with the Songjiang District Market Supervision Bureau. The legal representative is Wu Xiaowei, and its business scope includes the sales of metal products, metal materials, steel, building materials, daily necessities, wood, fuel oil (excluding dangerous goods), lubricants, needle textiles, textile raw materials, communication equipment, leasing of self owned houses, technology development, technical consulting, technical services, technology transfer in the fields of network, computer, and information technology, business information consulting, e-commerce (excluding value-added telecommunications and financial services), professional construction of building decoration and construction projects, installation and maintenance of mechanical equipment (excluding special), and import and export of goods and technology. The sentence is:. Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Eccentric Variable Diameter Pipe, Welding Support Pipe Seat, Wire Rod

TOP6
Changzhou Gosman Pipeline Technology Co., Ltd
Overall Score4.5 / 5
Est. Date2018-12-10
Registered Capital10000K CNY

Changzhou Gosman Pipeline Technology Co., Ltd., with its registered address at 671 Hanjiang Road, Xinbei District, Changzhou City, Jiangsu Province, is registered with the Government Service Management Office of Changzhou High tech Industrial Development Zone (Xinbei District). The legal representative is Zou Taofeng, and its business scope includes the production, research and development, and sales of pipeline equipment and accessories, as well as plastic products; Sales of hardware products, boards, valves, molds, electronic components, and chemical raw materials (excluding hazardous materials); Import and export of goods or technology (excluding goods and technology prohibited by the state or subject to administrative approval). (For projects that require approval by law, business activities can only be carried out after approval by relevant departments) Licensed projects: import and export of goods; Technology import and export; Import and export agency (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 the approval results). Core products: Eccentric Variable Diameter Pipe, Switch Valve, Pvdf

TOP7
Cangzhou Hangong Pipeline Equipment Co., Ltd
Overall Score4.5 / 5
Est. Date2022-07-14
Registered Capital2000K CNY

Cangzhou Hangong Pipeline Equipment Co., Ltd., with its registered address located 200 meters north of Zhaozhuangzi Village, Niujinzhuang Township, Mengcun Hui Autonomous County, Cangzhou City, Hebei Province, is registered with the Market Supervision and Administration Bureau of Mengcun Hui Autonomous County. The legal representative is Zhao Pengju, and its business scope includes general projects such as manufacturing and sales of pipeline equipment and fittings; Anti corrosion and insulation of pipelines and fittings; Sales: pipes, hardware, instruments and meters, fire-fighting equipment, wires, cables, green building materials, mechanical equipment and accessories. (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: Eccentric Variable Diameter Pipe, High Pressure Pipeline Connectors, Stainless Steel Bent Pipe

TOP8
Mengcun Hui Autonomous County Jiayuecheng Pipe Fitting Co., Ltd
Overall Score4.5 / 5
Est. Date2009-12-11
Registered Capital5800K CNY

Mengcun Hui Autonomous County Jiayuecheng Pipe Fitting Co., Ltd., with its registered address located in Liutan Industrial Zone, Xinda Highway, Mengcun Hui Autonomous County. The registration authority is the Market Supervision Administration of Mengcun Hui Autonomous County, and the legal representative is Li Tingxiang. Its business scope includes the processing and sales of elbows, tees, reducers, flanges, and pipes; Manufacturing and sales of hydraulic mechanical equipment. (Projects that require approval by law can only be operated after approval by relevant departments.). Core products: Eccentric Variable Diameter Pipe, Pipe Fitting, Flange

TOP9
Wuxi Shengqingyuan Metal Products Co., Ltd
Overall Score4.4 / 5
Est. Date2024-05-10
Registered Capital5080K CNY

Wuxi Shengqingyuan Metal Products Co., Ltd., with its registered address at 15-3 Qianqiao Weilu Road, Huishan District, Wuxi City, is registered with the Administrative Approval Bureau of Huishan District, Wuxi City. The legal representative is Sheng Fengkuan, and its business scope includes general projects such as metal material sales; Sales of metal products; Sales of metal chains and other metal products; Sales of metal cutting machine tools; Sales of metal wire ropes and their products; Sales of metal cutting and welding equipment; Sales of metal structures; Sales of non-ferrous metal alloys; Wholesale of hardware products; Sales of high-quality special steel materials; Sales of building materials; Sales of mechanical equipment; Loading and unloading handling; Import and export of goods; Import and export agency (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: Eccentric Variable Diameter Pipe, Large Caliber Square Tube, H-Beam

TOP10
Wuxi Yuanhongwang Metal Materials Co., Ltd
Overall Score4.4 / 5
Est. Date2014-01-06
Registered Capital2080K CNY

Wuxi Yuanhongwang Metal Materials Co., Ltd., with its registered address at 88-505-824 Hui'an Road, Wuxi (Wuxi Optoelectronic New Material Technology Park), is registered with the Administrative Approval Bureau of Liangxi District, Wuxi City. The legal representative is Gao Huaikuan, and its business scope includes the sales of metal materials and products, building materials, general machinery and accessories, hardware, electrical machinery and equipment. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Eccentric Variable Diameter Pipe, Galvanized Square Tube, Galvanized Pipe

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Foshan Kuankuan Stainless Steel Co., Ltd2011-03-03Eccentric Variable Diameter Pipe, Stainless Steel Pipe Fittings, Stainless Steel Round Tube30000K CNYSupported
Hebei Fangqing Pipeline Manufacturing Co., Ltd2013-09-03Eccentric Variable Diameter Pipe, Flange, Three-Way10900K CNYSupported
HeCaiShengXin (Shanghai) New Materials Co., Ltd2011-03-25Eccentric Variable Diameter Pipe, Pipes And Fittings, Frpp Flange Connection Silent Drainage Pipeline System10080K CNYSupported
Cangzhou Oulong Pipeline Equipment Manufacturing Co., Ltd2020-12-22Eccentric Variable Diameter Pipe, Wear-Resistant Elbow, 28000K CNYSupported
Shanghai Baiyi Special Materials Co., Ltd2019-01-02Eccentric Variable Diameter Pipe, Welding Support Pipe Seat, Wire Rod8000K CNYSupported
Changzhou Gosman Pipeline Technology Co., Ltd2018-12-10Eccentric Variable Diameter Pipe, Switch Valve, Pvdf10000K CNYSupported
Cangzhou Hangong Pipeline Equipment Co., Ltd2022-07-14Eccentric Variable Diameter Pipe, High Pressure Pipeline Connectors, Stainless Steel Bent Pipe2000K CNYSupported
Mengcun Hui Autonomous County Jiayuecheng Pipe Fitting Co., Ltd2009-12-11Eccentric Variable Diameter Pipe, Pipe Fitting, Flange5800K CNYSupported
Wuxi Shengqingyuan Metal Products Co., Ltd2024-05-10Eccentric Variable Diameter Pipe, Large Caliber Square Tube, H-Beam5080K CNYSupported
Wuxi Yuanhongwang Metal Materials Co., Ltd2014-01-06Eccentric Variable Diameter Pipe, Galvanized Square Tube, Galvanized Pipe2080K CNYSupported

Purchasing Guide

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

  • In the actual procurement process of eccentric variable diameter pipes, it is recommended to prioritize confirming key technical parameters such as the range of pipe diameter changes and eccentricity, to ensure compatibility with existing pipeline systems and avoid installation difficulties or leakage risks caused by non-compliance with specifications.
  • Eccentric variable diameter pipes are widely used in fluid transportation systems in industries such as chemical and metallurgical. When purchasing, it is necessary to consider performance requirements such as corrosion resistance and pressure bearing capacity based on specific scenarios. For example, special materials should be selected for acidic media environments.
  • When selecting suppliers, priority should be given to indicators such as product compatibility, business qualifications, enterprise activity, industry performance, and industry data support to ensure supply stability and technical reliability.
  • For the requirement of eccentric variable diameter pipes in long-distance pipeline engineering, it is recommended to pay attention to the actual application cases of suppliers in similar projects, and verify whether the products comply with industry standards such as ANSI or DIN specifications.

Knowledge Base

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This article analyzes the key points for selecting eccentric diameter changes in horizontal pipelines, including applicable scenarios, installation techniques, and common misconceptions, to help readers easily grasp the core knowledge of pipeline diameter changes.

Q

This article analyzes the key factors for choosing top or bottom eccentricity when changing the diameter of air ducts, and discusses the airflow characteristics, installation scenarios, and maintenance convenience to help readers make a reasonable choice.

Q

This article will delve into the impact of pipeline eccentricity and diameter change, including changes in fluid dynamics performance, effects on system pressure, and precautions in practical construction. We will also analyze the differences and potential impacts of using upper or lower flat designs for eccentric diameter changes in pipelines.

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