Quality Control Inspection Services in China
Catch defects before they ship — not after you've received them. Our independent QC inspectors verify that your products meet exact specifications at every stage of production, with no ties to the factory and no incentive to pass a failing order.
How do we control quality across China and Southeast Asia?
Quality control follows the factory named on the purchase order, not the country where the supplier's headquarters is registered. A China-founded manufacturer may quote production in China, Vietnam, Thailand, Taiwan, or another Asian site, and the inspection plan must match that facility's material flow, production stage, and final pack-out.
Before production, Luckee aligns the plan to the approved sample, specifications, defect limits, measurements, labeling, packaging, and destination-market requirements. Inspection then runs at three points:
- Before the run — to catch deviations while options remain
- During the run — to confirm the process is holding
- Before shipment — to verify the final product
Inspectors record quantity, workmanship, function, materials, packaging, and shipping readiness, and report what happened at that specific site — not the factory's self-assessment. AQL sampling follows the agreed plan but does not replace checking location, subcontracting, and final pack-out on the floor. If a shipment fails, the buyer can hold it for rework, re-inspection, discount, or rejection.
Build an inspection plan for your next production run.Three Stages of Quality Control
Quality failures almost always have an early warning sign. Inspecting at the right stage catches problems when they're still fixable — not after your container has shipped.
Pre-Production Inspection
Conducted before manufacturing begins. We verify that raw materials, components, and approved samples match your specifications before the factory starts cutting or assembling.
- Raw material and component verification
- Approved sample comparison
- Label, packaging, and spec sheet review
- Production readiness assessment
Inline Production Inspection
Conducted when 20–30% of the order is complete. Problems caught here can be corrected in the remaining 70–80% of production — the most cost-effective intervention point.
- Workmanship and construction checks
- Measurement and tolerance verification
- Defect pattern identification
- Corrective action follow-up
Final Pre-Shipment Inspection
The last checkpoint before your container loads. Conducted when 80–100% of production is complete. You only approve shipment after reviewing our detailed pass/fail report.
- AQL sampling per agreed inspection level
- Full function and appearance testing
- Carton drop, barcode, and labeling checks
- Quantity and packaging verification
Standard Inspection Checklist
Every inspection covers these categories. We work from your approved spec sheet, samples, and any custom requirements you specify.
Quantity verification
Confirm total units produced match order quantity, with correct carton count, inner pack, and master carton labeling.
Workmanship
Inspect for surface defects, finishing quality, stitching or welding integrity, and any obvious production flaws.
Measurements & tolerances
Verify key dimensions match the approved spec sheet within agreed tolerance ranges using calibrated instruments.
Function & performance
Test that the product performs its intended function — buttons, zippers, clasps, moving parts, electronics, and safety features.
Color & material matching
Compare against approved samples and Pantone/material specifications for color accuracy and material consistency.
Labeling & barcodes
Verify all labels, hang tags, barcodes, country of origin markings, and compliance warnings are correctly applied and scannable.
Packaging
Check inner and outer packaging against your packaging spec — correct materials, print quality, insert placement, and carton strength.
Drop & stress tests
Carton drop testing verifies packaging survives normal shipping handling. Additional stress tests applied per your product category.
How We Determine Sample Size
We use the ANSI/ASQ Z1.4 sampling standard (commonly called AQL — Acceptable Quality Limit) to determine how many units to inspect from each shipment and how many defects are acceptable before a shipment should be held.
Before production begins, we work with you to define three defect classes: critical (safety or legal violations — zero tolerance), major (functional or visible defects likely to cause returns), and minor (cosmetic issues unlikely to affect salability).
The standard default — AQL 0/2.5/4.0 — means zero critical defects, up to 2.5% major defects, and up to 4.0% minor defects in the inspected sample. We recommend tighter tolerances for regulated products, luxury goods, or high-return-risk categories.
Read our full AQL guide for importers →Example: 2,000-unit final inspection
| Defect class | AQL level | Accept ≤ |
|---|---|---|
| Critical defects | 0 | 0 units |
| Major defects | 2.5 | 7 units |
| Minor defects | 4.0 | 14 units |
Sample size: 125 units from 2,000. Inspection Level II, GIL. If any critical defect is found, or major exceeds 7, the shipment is placed on hold pending your decision.
Common Questions
See Quality Control in Practice
Need a quality control inspection?
Tell us the factory location, product type, and target ship date. We'll confirm availability and cost within one business day.