Precision-engineered metal components for circuit breakers, EV charging systems, and advanced electronic assemblies — manufactured to the highest industry standards.
Rivets for Miniature Circuit Breaker Parts
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China Suppliers Factory for Customized Copper Cylindrical Head Parts for NEV Charging Piles
View Details(Formerly Yueqing Feilong Instrument Factory) was established in September 1999 and is located at the Oujiang Port of Wenzhou City. It has complete production, processing, grinding and other departments as well as other departments. It mainly engages in the integrated manufacturing and sales of various electrical switches, shafts, plastic products and hardware components.
The products are widely used in home appliances, solenoid valves, electronics, automobiles, filtration equipment and other fields — serving more than 208 cooperative clients across China and internationally.
Full-chain capability: from raw material procurement to finished product shipment — strict quality control at every stage.

The electronics industry is one of the world's largest consumers of precision metal components. From miniature circuit breakers to EV charging infrastructure, metal parts are the invisible backbone enabling modern technology to function reliably and safely.
The global precision metal parts market for electronics is projected to exceed USD 85 billion by 2030, driven by rapid electrification, smart manufacturing, and the proliferation of connected devices.
Rivets, pins, and shafts for miniature and molded case circuit breakers are critical to electrical safety systems worldwide. The surge in residential and commercial electrification is driving unprecedented demand for high-precision metal fasteners and structural components in low-voltage protection devices.
As electric vehicle adoption accelerates globally, copper cylindrical head parts and connector components for EV charging piles have become one of the fastest-growing segments. High-conductivity copper parts ensure efficient power transfer, thermal stability, and long service life under high-cycle charging conditions.
Solenoid valve cores, iron cores, and precision shafts are fundamental to automated manufacturing lines, robotics, and industrial control systems. The Industry 4.0 revolution is expanding the complexity and precision requirements for these metal components at an accelerating pace.
From washing machine drum shafts to transformer iron cores in air conditioners, metal parts underpin the reliability of everyday household appliances. Miniaturization trends are pushing manufacturers to develop increasingly precise, lightweight metal components without sacrificing durability.
Moving iron cores and precision terminal posts are essential in analog meters, process control instruments, and laboratory analyzers. The shift toward digital instrumentation is creating demand for hybrid metal-composite components with both magnetic and non-magnetic properties.
Square shafts, solenoid cores, and corrosion-resistant terminal posts enable precise automation in water treatment, HVAC, and industrial filtration. Growing environmental regulations are driving adoption of more sophisticated metal components in these systems globally.
CNC machining, automated quality inspection, and digital twin technology are transforming how precision metal parts are designed and manufactured. Real-time process monitoring ensures tighter tolerances and higher consistency for electronics applications.
The shift toward recyclable alloys, lead-free plating, and energy-efficient manufacturing processes is reshaping material selection for electronic metal parts. Copper, aluminum, and eco-friendly composites are gaining prominence over traditional materials.
As electronics shrink, metal components must achieve greater precision in smaller form factors. Advanced micro-stamping and precision cold forging technologies enable sub-millimeter tolerances for next-generation compact devices.
The global transition to electric mobility and renewable energy is creating massive demand for high-conductivity copper parts, precision connectors, and robust fasteners capable of withstanding high-voltage, high-temperature environments.
Stricter IEC, UL, and RoHS standards are pushing manufacturers to invest in higher-grade materials, improved surface treatments, and more rigorous testing protocols for all metal parts used in electronic safety equipment.
Mainly engaged in the integrated manufacturing and sales of various electrical switches, shafts, plastic products and hardware components — tailored for electronics, automotive, energy, and industrial markets.

Pins and Shafts for Molded Case Circuit Breakers

Aluminum Blind Rivets for Molded Case Circuit Breakers

Molded Case Circuit Breaker Rivets

Custom Rivets for Miniature Circuit Breakers

Water Valve Accessories — Valve Core Iron Core

Copper Cylindrical Head Parts for New Energy Vehicle Charging Piles

New Energy Vehicle Charging Pile Component Connector

Water Valve Series Components — Nozzle
From household appliances to industrial automation, precision metal components are the silent enablers of modern electronics. Here is a deep-dive into the critical roles they play across key sectors.

Moving iron cores, square shafts, and terminal posts are fundamental in circuit breakers. The moving iron core provides instantaneous overcurrent protection; square shafts transmit torque precisely in operating mechanisms; terminal posts ensure low-resistance, thermally stable power connections — together enabling fast, reliable protection across industrial, commercial, and residential applications.

Moving iron cores in solenoids, relays, and fuel injectors enable rapid linear actuation for engine management. Square shafts transmit torque in throttle bodies and wiper mechanisms. Terminal posts ensure corrosion-resistant power distribution in battery and alternator systems — optimizing fuel efficiency, emission control, and drivability in modern EV and ICE architectures.

Iron cores in transformers and motors enable efficient electromagnetic energy conversion in microwave ovens and air conditioner compressors. Bushings in washing machine drum shafts reduce friction, absorb vibration, and extend operational lifespan — ensuring quiet, smooth, and energy-efficient appliance performance.

Iron cores (plungers) made of soft magnetic materials concentrate electromagnetic flux for rapid, precise fluid flow control. Bushings guide linear motion, reduce friction, and protect against metal-to-metal wear. Together they enable reliable, energy-efficient valve operation in direct-acting and pilot-operated configurations across high-pressure and corrosive environments.

Ferrite and silicon-steel iron cores in transformers, inductors, and chokes concentrate magnetic flux for efficient energy transfer in SMPS, RF filters, and EMI suppression devices. Insulating bushings provide structural support and electrical isolation, preventing short circuits and acting as thermal barriers in high-power electronic assemblies.

Moving iron cores in solenoid valves regulate backwashing cycles in self-cleaning filtration systems. Square shafts enable precise multi-port valve positioning in sand filters and membrane systems. Terminal posts maintain stable electrical connectivity for sensors and controllers in water treatment, HVAC, and industrial processing applications.

For every production link, from raw material procurement to finished product shipment, strict quality control is implemented to deliver metal parts that meet the most demanding electronics industry standards.

24-Hour Online Support

Fast shipping within 3–5 days

Fast and Efficient Manufacturing

Evaluate Quality Before Ordering

Expert Engineering Teams

OEM / ODM Available
The hard work in the past has brought about the current glorious career!

Before the machinery starts working, check whether the moving parts have been lubricated with oil. Then start it and check if the clutch and brake are functioning properly. Let the machine tool run idle for 1 to 3 minutes. Do not operate the machinery if it malfunctions.
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The processing of hardware parts is becoming increasingly common. It can be widely applied in many machinery and processing factories, such as cranes, forklifts, hoists, and even in daily life. Currently, the specifications and processing materials of hardware processing are all different.
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The quality of hardware accessories: Nowadays, there are a large number of hardware accessories on the market, with varying qualities. When making a purchase, it is best to choose an established brand. Also, pay attention to whether their surfaces are smooth, if there is any rust, or if there is any damage, etc.
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Hardware parts processing is to process raw materials (stainless steel, copper, aluminum, iron…). We use lathes, milling machines, drilling machines, grinding machines, polishing machines and other machinery to process various parts according to customers' drawings or samples.
View More →With strict management, high-quality products and excellent services, Jifeilong has won the trust and support of more than 100 enterprise customers across China and international markets.

















Explore our comprehensive range of precision copper and metal components engineered for EV charging infrastructure, circuit protection, and new energy electronics applications.
Rivets for Miniature Circuit Breaker Parts
View Details
High-Adaptability Copper Cylindrical Head Parts for EV Charging Piles — China Factory Solutions
View Details
High-Adaptability Copper Cylindrical Head Parts for EV Charging Piles | China Suppliers & Factory
View Details
China Suppliers Factory — Customized Copper Cylindrical Head Parts for NEV Charging Piles
View Details
High-Adaptability Copper Cylindrical Head Parts for Charging Piles | China Suppliers & Factory
View Details
Copper Cylindrical Head Parts for New Energy Vehicle Charging Piles
View Details
High-Adaptability Copper Cylindrical Head Parts for EV Charging Piles — China Suppliers & Factory
View Details
High-Adaptability Copper Cylindrical Head Parts for New Energy Vehicle Charging Piles | China Suppliers & Factory
View DetailsMake manufacturing your first or next metal parts product a breeze with our end-to-end solution — from custom design to fast global delivery.