Assembly & 100% testing

Assembled on calibrated, traceable lines; every unit pressure- and leak-tested before it ships.

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Service overview

Assembly & 100% testing

The final step is where Haofeng's in-house control pays off. Components made across our own forging, machining and welding lines come together on calibrated, traceable assembly lines — with torque, sealing and function verified as each unit is built.

Every pressure-bearing product is then pressure- and leak-tested to its rated working pressure — 100%, not by sample — and representative units from each batch undergo functional checks. Nothing ships on assumption; it ships on a test result.

Finished products are inspected, labelled, documented and packed — ready for OEM / private-label branding and export. Material traceability and complete inspection records travel with the goods, so buyers can pass their own audits and certifications with confidence.

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Traceable assembly lines

Calibrated lines with torque, sealing and function verified per unit.

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Traceable assembly lines

Calibrated lines with torque, sealing and function verified per unit.

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100% pressure & leak testing

Every pressure-bearing unit tested to rated pressure — not by sample.

Feature Icon

100% pressure & leak testing

Every pressure-bearing unit tested to rated pressure — not by sample.

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Batch inspection & records

Functional checks per batch, with complete inspection records retained.

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Batch inspection & records

Functional checks per batch, with complete inspection records retained.

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OEM packing & documentation

Labelled, documented and packed for private-label branding and export.

Feature Icon

OEM packing & documentation

Labelled, documented and packed for private-label branding and export.

Capabilities & Features

Product assembly

Category

Details

Assembly

  • Calibrated, traceable assembly lines ·

  • Verified torque & sealing ·

  • Functional assembly checks ·

  • Component integration from in-house parts ·

  • Scalable from prototype to volume

Testing & QC

  • 100% pressure & leak testing ·

  • Tested to rated working pressure ·

  • Per-batch functional sampling ·

  • Defects caught before dispatch ·

  • Complete inspection records




OEM, packing & documentation

  • OEM / private-label branding ·

  • Custom protective packaging ·

  • Material traceability (MTC) with goods ·

  • Export documentation support ·

  • Ready for buyer audits & certification


FAQ




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Simple & Transparent

Our proven workflow

Step 1

Design and planning

Step 2

Precision machining

Step 3

Final Inspection & dispatch

Common questions

Frequently asked questions

How are products assembled?

On calibrated, traceable assembly lines, using components made across our own forging, machining and welding operations, with torque, sealing and function verified per unit.

Do you test every unit or just samples?

Can you produce under our brand (OEM/ODM)?

What documentation ships with the goods?

How does this help with certification?

How are products assembled?

On calibrated, traceable assembly lines, using components made across our own forging, machining and welding operations, with torque, sealing and function verified per unit.

Do you test every unit or just samples?

Can you produce under our brand (OEM/ODM)?

What documentation ships with the goods?

How does this help with certification?

Get in touch

Start your precision manufacturing journey

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