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Precision Manufacturing Built for Global OEM Supply
Behind every reliable industrial component lies a stable manufacturing system. For more than 23 years, Yongji has focused on precision hardware manufacturing, developing an integrated production system capable of supporting both high-precision custom parts and large-volume fastener production.
Today, Yongji operates multiple manufacturing bases with over 500 production machines and a monthly output exceeding 300 million precision hardware components. Our manufacturing capabilities support customers across electronics, automotive, energy storage, communication equipment and industrial automation industries. By integrating engineering, tooling development, forming, machining and finishing processes, Yongji provides a manufacturing platform designed for long-term OEM supply programs.
  • Stamping
    High-speed sheet metal stamping for battery housings, conductive spring contacts, terminals, and thin-gauge structural components for the new energy and electronics industries.
  • Cold Heading
    High-speed cold heading for mass production of precision fasteners, including screws, bolts, nuts, and special-shaped fasteners, delivering consistent output and high material utilization.
  • Cam Lathe Turning
    Cost-effective turning for stepped screws, precision pins, and small custom fasteners. Suitable for medium- to high-volume production, with secondary processing available.
Integrated Manufacturing Technologies
Manufacturing efficiency and product consistency depend on the ability to integrate different production processes within one coordinated system.
Yongji combines multiple metal processing technologies to support different product geometries, materials and production volumes.
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Our Manufacturing Strength
  • Turning Workshop
  • Stamping Workshop
  • Raw Material Storage
  • Cold Forging Workshop
  • Cold Forging Workshop
  • Stamping Workshop
  • Stamping Workshop
  • Turning Workshop
  • Sheet Metal Fabrication
  • Sheet Metal Fabrication
  • Sheet Metal Fabrication
  • Raw Material Storage
Precision Manufacturing Standards
Typical manufacturing tolerances include:
CNC machining tolerances as tight as ±0.01 mm;
Stamping tolerances as tight as ±0.05 mm;
Cold forming tolerances of approximately ±0.1 mm.
These manufacturing standards help ensure consistent component quality and reliable performance in demanding industrial environments.
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Laboratory Testing
We use a range of professional testing equipment to ensure consistent product quality.
  • Laboratory Testing
  • CCD Testing (Inspection Equipment For Comprehensive Inspection Of Fasteners)
  • Laboratory Testing
  • CCD Testing (Inspection Equipment For Comprehensive Inspection Of Fasteners)
From Prototype to
Mass Production

Yongji supports customers throughout the entire production cycle. This structured manufacturing workflow helps customers move efficiently from product development to stable large-scale production.

  • Prototype development

  • Engineering validation

  • Pilot production

  • Mass production

Ready to Start Your Manufacturing Project?
Whether you need custom fasteners, precision metal components, or large-scale production support, Yongji is ready to support your project with engineering expertise and integrated manufacturing capabilities.
Contact our team to discuss your drawings, specifications, or production requirements.
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