Introduction to Copper Core Wire
Copper core wire is a fundamental component in the electrical and electronic industries. It is composed of a copper conductor, which is known for its excellent electrical conductivity, high ductility, and good corrosion - resistance. These properties make copper core wires widely used in various applications, including power transmission, electrical equipment wiring, telecommunications, and electronic devices. In power transmission, copper core wires can efficiently carry large amounts of electrical current with minimal energy loss. In the electrical equipment field, they ensure stable electrical connections and reliable operation of the equipment.
1. Zhejiang IRONFLON Wire & Cable Co., Ltd.
IRONFLON Wire&Cable Co., Ltd. was born in response to the needs of new economic development. The company has adopted production equipment from around the world and advanced technologies from Japan, Europe and America, breaking through traditional management systems. This is the result of technological innovation driving institutional innovation. The company is committed to the research and development of high-temperature cables, establishing and improving a quality management system to comprehensively meet the needs of customers.
At present, the company has passed ISO9001 and IAFA16949 quality management system certifications, and most of its products have passed UL and CUL certifications in the United States and VDE safety and quality certifications in Germany.
IRONFLON cares about the needs of every customer and also values the value of people. IRONFLON Company attaches great importance to customer requirements, understands their potential needs, and provides timely and thoughtful services to our customers. Tiefulong also fully respects the value of its employees, values everyone's labor, and advocates for an upward and professional spirit. Only with the joint efforts of all employees can we win the broad future and brilliant prospects of the enterprise.
Advantages
Excellent quality : Using high-quality raw materials, after multiple precision processes and strict testing, the product has stable performance and long service life.
Complete categories : covering a full range of products such as power cables, control cables, communication cables, special cables, etc., to meet the needs of different industries.
Thoughtful service : providing full process services from technical consultation, solution design to installation guidance, and responding quickly to customer needs.
Timely delivery : Efficient supply chain management and logistics system ensure timely delivery of orders.
High cost-effectiveness: Large scale production brings cost advantages, providing customers with cost-effective product choices.
Website: https://www.zjtfl.com/
2. Jiangsu Shangshang Cable Group Co., Ltd.
Jiangsu Shangshang Cable is definitely an all-around player in the industry. Even experienced electricians give a thumbs up when mentioning it. Whether it's for household, industrial, or high-voltage engineering use, its copper core wires can hold up. As a benchmark enterprise in the domestic cable industry, its most prominent advantage is "full range+high quality". It can produce a full range of products, from ordinary copper core wires for household 220V to 500000 volt ultra-high voltage power cables, without having to run around looking for different suppliers.
We insist on using pure oxygen free bare copper wire for material selection, which has high conductivity, low resistance, and particularly low losses during power transmission; The insulation layer is made of high-quality materials such as high-density polyethylene, which is flame retardant and heat-resistant. It can be used for a long time at a high temperature of 130 ℃ without deformation and does not burn when exposed to fire. When used for home decoration, there is no need to worry about safety hazards such as overload and heat generation. Moreover, its copper core wire has high strength and good flexibility. It can be buried under the roadway without adding a concrete protective layer, which can accelerate the construction progress. Whether it is home decoration, municipal engineering or industrial projects, it is a cost-effective choice. It has also won the honorary title of "China Energy Equipment Private Enterprise", and its strength is beyond doubt.
3. Zhongtian Technology Co., Ltd.
Zhongtian Technology takes the "technological innovation" route in the field of copper core wire, especially in the high-end copper core wire field, where its strength can be regarded as top-notch in the industry. Perhaps you haven't noticed in your daily life, but many of the commonly used Alibaba Cloud, Tencent Cloud data centers, and computing power hubs in the Yangtze River Delta countries use their high-speed copper core wires. The contract amount for a single project can exceed 1 billion yuan, which shows how highly they are recognized.
Its core advantage lies in its strong technological barriers, making it the only enterprise in China that can achieve mass production of 0.015mm ultra-fine copper wire. This ultra-fine copper wire, combined with nanoscale surface treatment, can reduce transmission loss to 0.15dB/m, achieving international advanced performance. It can also provide short-range connection solutions for Nvidia GB200 systems. And we are promoting the research and development of 224G foamed FEP high-speed copper cables, with an expected mass production by the end of 2025. The transmission rate can exceed 224Gbps, and it can adapt to 5G communication, artificial intelligence computing power clusters, and space station life support systems. It is one of the preferred suppliers for high-end scenarios and also the standard setter for high-speed cables in China, with full technical authority.
4. Hengtong Optic - Electric Co., Ltd.
Hengtong Optoelectronics may be more familiar with its fiber optic business, but its strength in the copper core wire field cannot be underestimated, especially in the fields of new energy and high-end manufacturing, making it a "hidden champion". By the first three quarters of 2025, the total operating revenue will reach 49.621 billion yuan, with strong production capabilities. Its copper based new materials have broken through the performance boundaries of traditional copper materials and are suitable for various high-end scenarios.
Its copper core wire has outstanding advantages. On the one hand, it can produce ultra-thin electrolytic copper foil with a thickness of only 1/20 of a human hair, which can significantly improve the energy density of lithium batteries and solve the pain points of new energy vehicle range. It has been applied to leading car companies such as CATL and BYD; On the other hand, the developed copper nickel silicon alloy conductor maintains high conductivity while increasing its tensile strength to over 600MPa. It can replace traditional pure copper conductors, reduce the weight of new energy vehicle wiring harnesses by 30%, and adapt to extreme environments ranging from -40 ℃ to 150 ℃. Currently, it has entered the supply chain of automotive companies such as Tesla and NIO. In addition, its copper core wires are widely used in fields such as 5G communication, semiconductor packaging, and ultra-high voltage power grids. Its overseas market layout is extensive, and its products are exported to multiple countries and regions, balancing professionalism and scale advantages.
5. Far East Smart Energy Co., Ltd.
Dongyang Intelligent Energy is a rising star in the industry, but its development speed is particularly fast. It focuses on "smart+energy-saving" copper core wire products, which are in line with the current trend of new energy and intelligence. Unlike traditional suppliers, this company not only focuses on the basic performance of copper core wires, but also excels in integrating intelligent technology into them. For example, by adding intelligent monitoring modules to copper core wires, it can monitor the temperature and current of the circuit in real time. Once there are abnormalities such as overload and heating, it can issue timely warnings. Whether it is an industrial plant or a large community, it can reduce safety hazards and lower maintenance costs in the later stage.
High purity oxygen free copper is also used for material selection, with low conductivity loss and long service life. The insulation layer is made of low smoke and halogen-free materials, which do not produce toxic gases during combustion, making it more environmentally friendly and safe. It is suitable for high environmental requirements such as household, school, hospital, etc. Moreover, its copper core wire has a high cost performance ratio, with an advantage in bulk purchasing prices. At the same time, it can provide customized services, whether it is a small decoration project or a large industrial project, to meet personalized needs. It has a good reputation in East and South China and is the preferred supplier for many small and medium-sized enterprises.
6. Baosheng Group Co., Ltd.
As a listed company under the Aviation Industry Group, Baosheng Technology naturally carries the "military genes". This background endows them with strict quality control standards and technical research and development capabilities.
The core advantage of Baosheng Technology lies in the field of special cables. In markets such as aerospace, nuclear power, and new energy that have extremely demanding requirements for cables, they have complete access qualifications and rich supply performance. For example, building cables use "cross-linked polyethylene insulation", which can have a lifespan of up to 30 years at 85 ℃, twice that of ordinary PVC cables; Fluoroplastic insulation is used for military cables, with a temperature range of -65 ℃ to 200 ℃, which can resist corrosion from aviation fuel.
In recent years, Baosheng Technology has actively promoted the transformation of military technology into the civilian field. Their fire-resistant cables, mineral insulated cables and other products have gained widespread recognition in high-end construction, rail transit, smart grid and other markets with military grade quality standards. For civilian projects that pursue the highest level of safety, Baosheng Technology's products provide "super matched" security guarantees.
7. Yangtze River Cable Co., Ltd.
Yangtze River Cable Co., Ltd. is an excellent private enterprise deeply engaged in the field of low-voltage copper core wire. Since its establishment more than 20 years ago, it has always focused on "practicality, reliability, and high cost-effectiveness". It is the preferred brand for many home decoration and small projects. Many of the residential wiring and shop decoration around us use its copper core wire.
Its advantage is down-to-earth. Firstly, it has a complete range of products, covering multiple categories such as low-voltage power cables, control cables, and household copper core wires. From BV single core hard wires to RVV multi strand flexible wires, it has various specifications to meet the needs of different scenarios; Secondly, there is strict quality control. From raw material procurement to product delivery, every step undergoes strict inspection and has passed ISO9001 quality management system certification and 3C certification. The copper core is made of high-purity oxygen free copper, which has stable conductivity, flame-retardant and durable insulation layer, and is not easy to age. Household wiring can be used for decades without replacement. In addition, its inventory is sufficient, logistics channels are complete, and orders can be quickly shipped. The after-sales response is also timely, whether it is personal decoration or small engineering procurement, it is very worry free.
8. Jinzhou Cable Co., Ltd.
Jinzhou Cable is a well-established enterprise in the copper core wire field in Northeast China. It has been deeply involved in the industry for many years, focusing on "durability and strong adaptability", especially suitable for the climate environment in the north. Whether it is the cold winter or the humid summer, its copper core wire can work stably and is not prone to brittle cracking and aging problems. This is also one of the reasons why it has an excellent reputation in the northern market.
Their copper core wire uses high-purity oxygen free copper conductor, with a resistivity as low as 0.017 Ω· mm ²/m, high conductivity efficiency, and a current carrying capacity about 30% higher than aluminum core wire. It has low power transmission loss and is suitable for large-scale heating projects, industrial plants, and other scenarios in the north. Moreover, it has high mechanical strength, strong tensile and bending resistance, and is not easily damaged during construction. The contact resistance at the joint is stable, and it is not easy to cause heat hazards due to oxidation. It has a high cost-effectiveness and is the preferred supplier for many engineering and home decoration projects in Northeast and North China. Its products are also widely used in municipal engineering, mining and other fields.
9. Qingdao Hanhe Cable Co., Ltd.
Qingdao Hanhe Cable Co., Ltd. (Hanhe Cable) was established in 1982 and has now developed into a large cable enterprise with an annual sales revenue of 5 billion yuan. Their uniqueness lies in their deep investment in technology research and development.
Hanhe Cable Co., Ltd. owns the industry's only "National High Voltage and Ultra High Voltage Cable Engineering Technology Research Center", as well as a national enterprise technology center and postdoctoral research workstation. They have introduced international advanced equipment such as NOKIA's 220kV-500kV vertical tower cross-linked cable production line in Finland and TROESTER's vertical ultra-high voltage cross-linked cable production line in Germany.
Transforming technological advantages into product advantages. The 500kV cross-linked polyethylene insulated power cable and 35kV ethylene propylene rubber insulated power cable of HanCable Co., Ltd. have filled the domestic gap, and products such as load-bearing detection cables and cross-linked polyethylene insulated submarine cables have been rated as national level new products. Their clients include large state-owned enterprises such as State Grid, Southern Power Grid, Sinopec, and PetroChina, and their products are widely used in various fields such as electricity, petroleum, chemical, transportation, and construction.
10. Shenyang Cable Co., Ltd.
The predecessor of Shenyang Cable Co., Ltd. was Shenyang Cable Factory, which inherited all the excellent assets and qualifications of the original manufacturer. It is a "veteran powerhouse" in the copper core wire field in Northeast China. For many years, it has been focusing on the research and development and production of copper core wires, with stable product reputation and high credibility in the domestic market.
Their copper core wire has the core advantage of "excellent quality and mature technology". The copper core wire produced covers 6 categories, including power cables, electrical equipment wires and cables, with nearly 40000 specifications, all of which are produced according to international standards and have passed multiple international system certifications. Among them, 22 products such as 110kV-330kV high-voltage oil filled cables and accessories, and mining rubber sheathed flexible cables have won national and provincial scientific and technological progress awards. In terms of material selection, high-purity oxygen free copper is used, which has stable conductivity, corrosion resistance, and long service life. It has been used as a supporting material for national key projects such as Qinshan Nuclear Power Plant, Beijing Olympics, and Beijing Metro. Whether it is industrial engineering, municipal projects, or home decoration, reliable copper core wire products can be provided. The "Golden Ring" series has been rated as a Chinese famous brand product, with cost-effectiveness and reliability.
Conclusion
The above - mentioned 10 leading copper core wire suppliers in China in 2026 represent the high - level development of the copper core wire industry in China. Each enterprise has its own unique features and advantages in copper core wire production. Some focus on technological innovation, such as Zhongtian Technology and Qingdao Hanhe Cable, which are constantly exploring new materials and production processes to improve product performance. Others emphasize product diversification and customization, like Zhejiang IRONFLON and Yangtze River Cable, which can meet the diverse needs of different industries.
These enterprises also play an important role in promoting the development of related industries. Their high - quality copper core wires are widely used in power transmission, electrical equipment, telecommunications, and other fields, providing strong support for the development of the national economy. With the continuous development of technology and the increasing demand for high - quality copper core wires, these enterprises will continue to innovate and improve, and contribute to the further development of the global copper core wire market.
