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

From Gerber files to a tested, ready-to-ship assembly

We support PCB and PCBA work using your Gerber files, BOM and assembly instructions, and coordinate EMS from prototype through to production.

Wire-harness integration and functional testing are paired with clear documentation — giving your electronics project traceability and confidence at every stage.

Electronics manufacturing and quality inspection workstations with technicians assembling, testing, and packaging electronic components in a clean production facility.

What we support

Each metal manufacturing capability is paired with engineering communication, documentation and production coordination.

PCB & PCBA icon

PCB & PCBA

Bare-board and PCBA assembly based on your Gerber files, BOM and assembly instructions — SMT and through-hole.

PCB & PCBA
EMS Coordination icon

EMS Coordination

Electronics manufacturing services coordinated from prototype to volume production, with supply-chain alignment.

EMS Coordination
Wire Harnesses icon

Wire Harnesses

Wire-harness processing, cable assemblies and connector integration support for your assemblies.

Wire Harnesses
Testing Support icon

Testing Support

Functional testing support with accompanying documentation and traceability for confident delivery.

Testing Support

End-to-end electronics manufacturing services

One coordinated partner across the electronics journey from engineering review to global delivery.

DFM Review

DFM Review

Manufacturability review before production commitments.

PCB & PCBA

PCB & PCBA

Bare board fabrication and full assembly.

Wire Harnesses

Wire Harnesses

Harness processing and connector integration.

Testing

Testing

Functional testing and quality documentation.

Volume Production

Volume Production

Scalable coordination from low-vol to mass.

Your trusted partner for custom electronics manufacturing

20

+

Years Manufacturing Experience

500

+

Global Customers

30

+

Countries Served

98

%

On-Time Delivery Rate

From PCB prototype to mass production, Tongyong Industries supports global B2B customers with engineering-driven communication, coordinated EMS and stable quality control.

Learn more about Tongyong
Your trusted partner for custom electronics manufacturing
Countries Served
30+

Countries Served

Customers Worldwide
500+

Customers Worldwide

Clear, collaborative project management

We keep electronics projects visible and traceable from first review through to delivery.

Requirement Visibility

Custom Electronics Manufacturing across industries

From engineering collaboration to product realization, we support custom electronics across diverse sectors.

STEP 00

Requirement Review

Scope & files

STEP 01

BOM & Components

Selection

STEP 02

Prototype

Validation

STEP 03

Assembly

Coordination

STEP 04

Testing

Functional & docs

STEP 05

Production

Readiness

Electronics Manufacturing across sectors

Industrial Automation

Industrial Automation

Control modules and equipment electronics.

Medical Devices

Medical Devices

Precision electronics for medical equipment.

Consumer Electronics

Consumer Electronics

Smart and connected consumer products.

Energy Systems

Energy Systems

Power, control and energy electronics.

Ready to start your electronics project?

Share your Gerber files, BOM, drawings, test requirements, and target quantity. We will review your project details and suggest the right manufacturing path.

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