HS
Huasheng Precision
Dongguan · Est. 2009
Quality / QC Process

Parts that pass
first-article inspection — every time.

Quality isn't a department at Huasheng — it's the reason Japanese OEMs have kept sending orders to us for 15 years. Here's exactly how every part shipped is a part that works.

Huasheng technician performing CMM inspection
CMM · Keyence
Inspection Equipment

The tools we measure with.

Instrument
Keyence CMM

Non-contact 3D coordinate measurement for complex geometries. Ideal for medical and consumer electronics components with free-form surfaces.

Instrument
Mitutoyo CMM

Contact probe CMM for high-accuracy dimensional verification. Used for automotive brackets, precision shafts, and fixtures.

Instrument
2D Optical Projector

Profile verification for flat parts, threads, and silhouette-critical features.

Instrument
Surface Roughness Tester (Mitutoyo SJ-210)

Ra measurement from 0.4 μm mirror finish to 12.5 μm rough machining.

Instrument
Calipers & Micrometers

Mitutoyo digital calipers (0.01 mm), micrometers (0.001 mm) for in-process operator checks.

Instrument
Hardness Testers

Rockwell and Vickers testers for heat-treated steel, anodize layer hardness verification.

Inspection Process

What happens before your parts ship.

  1. 01
    First Article Inspection (FAI)

    For every new part number, we produce a First Article and measure every callout on your drawing. Full dimensional report issued before we release the production batch.

  2. 02
    In-Process Inspection

    Every 10–50 pieces (depending on AQL plan), an operator samples a part and verifies critical dimensions on the shop-floor CMM. Out-of-tolerance triggers an immediate machine stop.

  3. 03
    Final Inspection

    Before packing, 100% of critical dimensions measured on CMM for tight-tolerance parts. Visual inspection under controlled lighting for cosmetic surfaces.

  4. 04
    Material Verification

    Material certificates (EN 10204 3.1) available for all metals on request. We verify material on receipt against certs before releasing to machining.

  5. 05
    Documentation

    FAI report + material cert + Certificate of Conformance (COC) shipped with every order. PPAP package available for automotive customers on request.

Standards

Certifications & Process Controls

ISO 9001:2015 — Quality Management System
IATF 16949 — Automotive (process-aligned, certification in progress)
RoHS — Restriction of hazardous substances compliance
REACH — EU chemical compliance on request
NDA — Non-disclosure signed for every drawing received
Information Security — Internal data handling protocol for customer IP
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