Quality Control

Quality is built into every step at JIANGCHENG. Each process — from raw material to finished part — is followed by our professional QC team, and 100% of parts are inspected before shipment.

Inspection Process

Incoming — raw material verified against specification.
In-Process — first-article checks at each machining stage.
Final — dimensional, visual and functional inspection.
Pre-Shipment — 100% inspection and OQC report.

Inspection Equipment

Equipment	Purpose
CMM (Coordinate Measuring Machine)	High-precision dimensional measurement
Calipers & Micrometers	Routine dimensional checks
Roughness Tester	Surface finish measurement
Height Gauge	Vertical dimension verification

Quality Reports

On request we provide FAI (First Article Inspection) and OQC (Outgoing Quality Control) reports, including material certificates and dimensional data.

Request a Quote

Frequently Asked Questions

Do you provide inspection reports?

Yes, FAI and OQC reports are available on request, with dimensional and material data.

Do you inspect every part?

Yes, we perform 100% inspection before shipment.

What measurement equipment do you use?

CMM, calipers, micrometers, roughness testers and height gauges.

JIANGCHENG Engineering Team

With more than 15 years of combined experience in CNC machining and rapid prototyping, our engineers turn your CAD drawings into high-precision parts with fast turnaround.