Global B2B Custom Manufacturing — Electronics, Metal Parts, Assembly & Engineering Support

Reliable manufacturing for global B2B projects

Engineering-driven custom manufacturing support for metal parts, electronics, structural components, enclosures, and box-build assembly projects.

  • Reliable
  • End-to-End Support
  • Long-Term Partnership
  • Coordinated Manufacturing
500+

Global Customers

30+

Countries Served

20+

Years Experience

A global custom manufacturing partner

Tongyong Industries is a global B2B custom manufacturing solutions provider for metal parts, electronics, enclosures, structural components, box-build assembly, and engineering support.

Supported by manufacturing capabilities in China with over 20 years of experience, we help customers move from product development to stable production.

20+

Years Experience

120+

Eng. & Quality Team

500+

Customers Served

About us
Tongyong factory Tongyong factory

Integrated capabilities for global B2B projects

Five connected capabilities, and the customers we support — from idea to finished, packaged delivery.

Built for customers at every stage

From product development teams to established OEMs, Tongyong Industries provides tailored, scalable manufacturing and engineering support — helping global B2B customers move from concept validation to reliable, scaled production.

Startups & Innovation Teams

Startups & Innovation Teams

Rapid prototyping, DFM support and low-volume production to accelerate development and validate concepts.

Growing Businesses & SMEs

Growing Businesses & SMEs

Flexible volumes, cost-effective manufacturing support and stable quality for steady growth.

Large Enterprises & OEMs

Large Enterprises & OEMs

Coordinated production, turnkey assembly and integrated supply-chain and delivery support.

A partnership built to be dependable

We focus less on speed and scale, and more on what keeps your project on track over the long run.

Reliable

Reliable

Stable quality, clear communication and dependable delivery — the basis of trust for global buyers.

End-to-End Support

End-to-End Support

From requirement review to delivery, one partner supports every stage of product realization.

Coordinated Manufacturing

Coordinated Manufacturing

Electronics, metal and integration coordinated together, reducing multi-supplier overhead.

Long-Term Partnership

Long-Term Partnership

We aim to grow with customers over years — not to win a single order.

One coordinated path, end to end

A complete support system from requirement review to delivery — each stage handled with care.

STEP 00

Project Review

Drawings, samples and requirements assessed together.

STEP 01

Engineering

DFM, materials and process optimized for production.

STEP 02

Prototype

Samples built and validated before scaling.

STEP 03

Manufacturing

Low-volume to mass production, coordinated.

STEP 04

Quality Control

Inspection, testing and documented records.

STEP 05

Delivery

Protective packaging and global delivery.

Quality you can verify

We support quality through material inspection, in-process control, dimensional and functional checks, and traceable documentation across production.

Manufacturing is supported by certified entities within the Tongyong business system, with certifications applied within their stated scope.

  • ISO 9001
  • ISO 14001
  • ISO 45001
  • CE
  • RoHS
  • FCC
Quality details
Quality inspection

Latest Insights from Tongyong Industries

Updates, engineering perspectives, and manufacturing insights for global B2B projects.

Why Metal Parts and Electronics Coordination Matters in Product Manufacturing

Integrated products often require close coordination between metal structures, electronics, enclosures, wiring, and assembly. Early manufacturing revi...

Key Checks Before Moving from Prototype to Low-Volume Production

A successful prototype does not always mean the product is ready for low-volume production. This article outlines key checks for design stability, mat...

Have a manufacturing question?

Share your drawings, requirements, or project ideas. Our team will review the manufacturing feasibility and suggest the next steps.

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