Updated Oct 10, 2026 · Public platform & industry data

Oct 10, 2026 Updated

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2026 Top 10 Insulating Medium Manufacturers in China

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Top-rated Insulating Medium suppliers, How to choose a Insulating Medium manufacturer, Best Insulating Medium companies in China

The top 10 Insulating Medium manufacturers in China for 2026 are: Jiangsu Baoze Electric Technology (Group) Co., Ltd, Tianjin Cable Factory Rubber Cable Factory, Foshan Jinggu Material Technology Co., Ltd, Shenzhen Weida Industrial Gas Co., Ltd, Lianyungang Huade Petrochemical Machinery Co., Ltd, Shanghai Tianru Special Gas Co., Ltd, Tianjin Baochi Chemical Technology Co., Ltd, Chengdu Chaomai Optoelectronics Technology Co., Ltd, Beijing Shuzhi Yilong Instrument Co., Ltd, Wuhan Guodian Huamei Electrical 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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Jiangsu Baoze Electric Technology (Group) Co., Ltd
Overall Score4.9 / 5
Est. Date2022-03-11
Registered Capital52280K CNY

Jiangsu Baoze Electric Technology (Group) Co., Ltd., registered at No. 2 Sanhe Road, Industrial Concentration Zone, Luduo Town, Baoying County, with Baoying County Data Bureau as the registration authority and Zhu Changgeng as the legal representative, is engaged in licensed projects including electrical installation services (projects that require approval by law can only be carried out after approval by relevant departments, and specific business projects are subject to approval results) and general projects including research and development of distribution switch control equipment; Manufacturing of distribution switch control equipment; Manufacturing of electrical accessories; Manufacturing of mechanical and electrical equipment; Manufacturing of metal structures; Manufacturing of instruments and meters; Manufacturing of electrical instruments and meters; Manufacturing of specialized equipment for environmental protection; Manufacturing of automotive parts and accessories; Sales of distribution switch control equipment; Sales of electrical accessories; Sales of mechanical and electrical equipment; Sales of metal structures; Sales of instruments and meters; Sales of electrical equipment; Sales of electrical instruments and meters; Sales of specialized equipment for environmental protection; Wholesale of automotive spare parts; Sales of non-ferrous metal alloys; Sales of plastic products; Sales of rubber products; Import and export of goods; Technology import and export; 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: Insulating Medium, Power Bus Series,

Top 2
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Tianjin Cable Factory Rubber Cable Factory
Overall Score4.7 / 5
Est. Date1993-08-16
Registered Capital36180K CNY

Tianjin Cable Factory Rubber and Plastic Cable Factory, with its registered address in Liuyanma, Dacheng County, registered with the Market Supervision and Administration Bureau of Dacheng County, Langfang City. The legal representative is Hao Wenju, and its business scope includes licensed projects such as wire and cable manufacturing. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments. Specific business projects shall be subject to the approval documents or licenses issued by relevant departments.) General projects: operation of wires and cables; Fiber optic cable manufacturing; Fiber optic cable sales. (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: Insulating Medium, Mining Network Cable, Composite Cable

Top 3
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Foshan Jinggu Material Technology Co., Ltd
Overall Score4.7 / 5
Est. Date2016-10-28
Registered Capital480K CNY

Foshan Jinggu Material Technology Co., Ltd., with its registered address at Li Shufen's self compiled No. 6 shop in Shang'an Development Zone, Danzao Town, Nanhai District, Foshan City. The registration authority is the Nanhai District Market Supervision Administration of Foshan City, and the legal representative is Luo Jiemei. Its business scope includes wholesale of other chemical products (excluding hazardous chemicals); Engineering and technical research and experimental development. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Insulating Medium, Ceramic Filter, Glass Powder

TOP4
Shenzhen Weida Industrial Gas Co., Ltd
Overall Score4.6 / 5
Est. Date2021-08-26
Registered Capital1000K CNY

Shenzhen Weida Industrial Gas Co., Ltd., registered at 325 Jinhao Building, No. 109, Fuyong Section, Guangshen Road, Fenghuang Community, Fuyong Street, Bao'an District, Shenzhen, with the registration authority of Bao'an Supervision Bureau of Shenzhen Market Supervision Administration and legal representative He Yingjiang, is engaged in the sales of special equipment; Sales of specialized chemical products (excluding hazardous chemicals); Sales of metal cutting and welding equipment; Sales of chemical products (excluding licensed chemical products); Sales of daily chemical products. (Except for projects that require approval according to law, business activities can be carried out independently based on the business license). (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: Insulating Medium, High Purity Hydrogen Gas, Liquid Helium Gas

TOP5
Lianyungang Huade Petrochemical Machinery Co., Ltd
Overall Score4.6 / 5
Est. Date2002-09-30
Registered Capital42000K CNY

Lianyungang Huade Petrochemical Machinery Co., Ltd., registered at No. 117 Qufeng Road, Haizhou Economic Development Zone, Lianyungang City, with the registration authority of Lianyungang Market Supervision Administration and the legal representative of Yu Dan, is engaged in the design and manufacturing of marine and land fluid loading and unloading equipment, port and dock petrochemical equipment, fluid quantitative loading control equipment, low-temperature crane pipes, emergency release equipment, boarding elevators, cable hooks, wharf bridges, activity elevators, floating discs, water pumps, oil pumps, hydraulic components, valves, and flow meters; Sales of petrochemical machinery; Development, installation, and maintenance of automation control systems; Import and export business of various commodities and technologies through self operation and agency, except for commodities and technologies restricted or prohibited by the state for enterprise operation or import and export. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments)***. Core products: Insulating Medium, Liquefied Gas Crane Tube, Loading And Unloading Arm

TOP6
Shanghai Tianru Special Gas Co., Ltd
Overall Score4.5 / 5
Est. Date2016-05-24
Registered Capital5000K CNY

Shanghai Tianru Special Gas Co., Ltd., with its registered address at Room 520, 5th Floor, Building 3, No. 1085 Zhenchen Road, Baoshan District, Shanghai, is registered with the Baoshan District Market Supervision and Administration Bureau. The legal representative is Bian Shiyao, and the business scope includes general projects such as technical services, technical development, technical consultation, technical exchange, technology transfer, and technology promotion; Sales of chemical products (excluding hazardous chemicals, monitored chemicals, fireworks and firecrackers, civilian explosives, and precursor chemicals), fluid equipment and accessories, gas pipelines and accessories, instruments and meters, and pressure reducers; Leasing of self owned equipment (not allowed to engage in financial leasing); Installation and maintenance of mechanical and electromechanical equipment (excluding special equipment); Import and export of goods; Technology import and export; Sales of food additives. (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: Insulating Medium, Arc Extinguishing Agent, Sulfur Hexafluoride For Power Insulation

TOP7
Tianjin Baochi Chemical Technology Co., Ltd
Overall Score4.5 / 5
Est. Date2013-10-12
Registered Capital10000K CNY

Tianjin Baochi Chemical Technology Co., Ltd. is registered at 418-18, Comprehensive Building, Houpudang Village, Dahuangbao Township, Wuqing District, Tianjin (centralized office area). The registration authority is the Market Supervision Administration of Wuqing District, Tianjin, and the legal representative is Wang Zifeng. Its business scope includes the development of chemical product technology, consulting services, wholesale and retail of chemical products, rubber products, plastic products, hardware products, and electronic products. (Projects that require approval by law can only be operated after approval by relevant departments.). Core products: Insulating Medium, Half Step Strong Carbon Black, Mixed Carbon Black

TOP8
Chengdu Chaomai Optoelectronics Technology Co., Ltd
Overall Score4.5 / 5
Est. Date2014-09-18
Registered Capital50000K CNY

Chengdu Chaomai Optoelectronic Technology Co., Ltd., with its registered address at No. 503, 5th Floor, Building 4, No. 1024 South 1st Road, Chengdu Economic and Technological Development Zone (Longquanyi District), Sichuan Province, China. The registered authority is the Market Supervision and Administration Bureau of Longquanyi District, Chengdu City, and the legal representative is Zhang Songlin. The company's business scope includes research and development, manufacturing, and sales of pumps and vacuum equipment, electronic industry special equipment, electronic vacuum devices, industrial automatic control system devices, optoelectronic components and other electronic components, scales, optical instruments, optical glass, special ceramic products, glass, ceramic and enamel production special equipment, environmental protection equipment, photovoltaic equipment and devices, experimental machines, teaching special instruments, and other special equipment; Sales: Building materials, hardware and electrical equipment, cultural supplies; Computer software development; Import and export business of goods and technology; Engineering and technical research and experimental development [Projects that require approval by law can only be carried out after approval by relevant departments; business activities cannot be carried out without obtaining relevant administrative licenses (approvals)].. Core products: Insulating Medium, Crystal Furnace, Coating Machine

TOP9
Beijing Shuzhi Yilong Instrument Co., Ltd
Overall Score4.4 / 5
Est. Date2005-12-16
Registered Capital1000K CNY

Beijing Shuzhi Yilong Instrument Co., Ltd., registered at 1516, 12th floor, Building 4, No. 9 West Huilongguan Street, Huilongguan Town, Changping District, Beijing, registered with the Changping District Market Supervision Administration, with Zhang Hui as the legal representative. Its business scope includes the sale of instruments, computers, software and auxiliary equipment, and electronic products; Technology development, technology consulting, technology transfer, and technology services; Manufacturing instruments and meters. (Enterprises shall independently choose their business projects and carry out business activities in accordance with the law; for projects that require approval by law, they shall carry out business activities in accordance with the approved content after obtaining approval from relevant departments; they shall not engage in business activities prohibited or restricted by the industrial policies of this city.). Core products: Insulating Medium, Automatic Titrator, Measuring Instrument

TOP10
Wuhan Guodian Huamei Electrical Equipment Co., Ltd
Overall Score4.3 / 5
Est. Date2008-01-28
Registered Capital30000K CNY

Wuhan Guodian Huamei Electrical Equipment Co., Ltd., with its registered address at Building A25, Phase I, Wuhan Mold Industrial Park, Hannan Economic Development Zone, Wuhan City. The registration authority is the Administrative Approval Bureau of Wuhan Economic and Technological Development Zone (Hannan District), and the legal representative is Li Wubing. Its business scope includes licensed projects such as building intelligent system design; Construction project construction; Electrical installation services (projects that require approval by law and can only be carried out after approval by relevant departments. Specific business projects are subject to approval documents or licenses from relevant departments) General projects: manufacturing of testing machines; Manufacturing of electronic measuring instruments; General equipment manufacturing (excluding special equipment manufacturing); Manufacturing of mechanical and electrical equipment; Manufacturing of electric dynamometer motors; Manufacturing of instruments and meters; Manufacturing of hardware products; Sales of testing machines; Sales of electronic measuring instruments; Sales of communication equipment; Sales of mechanical equipment; Sales of electrical equipment; Sales of electric dynamometer motors; Sales of electronic specialized equipment; Sales of instruments and meters; Wholesale of hardware products; Retail of hardware products; Wholesale of computer software, hardware, and auxiliary equipment; Retail of computer software, hardware, and auxiliary equipment; Electronic product sales; Sales of office equipment; Sales of office equipment and consumables; Sales of specialized teaching instruments; Sales of audio equipment; Furniture sales; Graphic and textual design and production; Graphic Artist Designer; Professional design services; Information system integration services; Electrical equipment repair; Mechanical equipment leasing; Rental services (excluding licensed rental services); Import and export of goods; Technology import and export (except for licensed businesses, can independently operate projects that are not prohibited or restricted by laws and regulations). Core products: Insulating Medium, No Partial Discharge Series, Grounding Resistance

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Jiangsu Baoze Electric Technology (Group) Co., Ltd2022-03-11Insulating Medium, Power Bus Series, 52280K CNYNot Supported
Tianjin Cable Factory Rubber Cable Factory1993-08-16Insulating Medium, Mining Network Cable, Composite Cable36180K CNYNot Supported
Foshan Jinggu Material Technology Co., Ltd2016-10-28Insulating Medium, Ceramic Filter, Glass Powder480K CNYNot Supported
Shenzhen Weida Industrial Gas Co., Ltd2021-08-26Insulating Medium, High Purity Hydrogen Gas, Liquid Helium Gas1000K CNYNot Supported
Lianyungang Huade Petrochemical Machinery Co., Ltd2002-09-30Insulating Medium, Liquefied Gas Crane Tube, Loading And Unloading Arm42000K CNYSupported
Shanghai Tianru Special Gas Co., Ltd2016-05-24Insulating Medium, Arc Extinguishing Agent, Sulfur Hexafluoride For Power Insulation5000K CNYNot Supported
Tianjin Baochi Chemical Technology Co., Ltd2013-10-12Insulating Medium, Half Step Strong Carbon Black, Mixed Carbon Black10000K CNYNot Supported
Chengdu Chaomai Optoelectronics Technology Co., Ltd2014-09-18Insulating Medium, Crystal Furnace, Coating Machine50000K CNYSupported
Beijing Shuzhi Yilong Instrument Co., Ltd2005-12-16Insulating Medium, Automatic Titrator, Measuring Instrument1000K CNYNot Supported
Wuhan Guodian Huamei Electrical Equipment Co., Ltd2008-01-28Insulating Medium, No Partial Discharge Series, Grounding Resistance30000K CNYNot Supported

Knowledge Base

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Natural air-cooled transformers usually use dry-type insulation media, which are mainly composed of resin materials and have good electrical and heat resistance properties, ensuring stable operation of the transformer under different environmental conditions. This article provides a detailed introduction to the characteristics, applications, and advantages of insulation media for naturally air-cooled transformers.

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