2️⃣ Incoming Quality Control (IQC)

• Quality check of materials before production
• Measurement of parameters, testing for strength and safety
• Documentation of results for transparency

Important: even minor deviations at the raw material stage can become critical at the output.

3️⃣ In-Process Quality Control (IPQC)

• Regular checks during assembly
• Use of checklists for employees
• Monitoring critical points (e.g., soldering, seams, assembly of components)

Tip: implement photo protocols to document problems and resolve them quickly.

4️⃣ Final Quality Control (FQC)

• 100% or sampling inspection of finished products
• Testing for functionality, appearance, packaging
• Documentation of defects and decision-making: correction, rejection or return

Example: sampling 20 units from a batch of 1000 to check key parameters.

5️⃣ Testing and Certification

• Compliance check with international standards (CE, RoHS, FCC)
• Laboratory tests for safety and durability

Tip: having certifications increases trust in your product in the market.

📝 Step-by-step guide: how to establish quality control

1. Select a reliable manufacturer and conduct a factory audit.
2. Sign a contract with clear quality requirements.
3. Organize incoming material control (IQC).
4. Implement regular IPQC at all stages of production.
5. Conduct final FQC and product testing.
6. Document all results and keep reports.
7. Use independent inspections before shipment.

Advantage: minimizing defects, increasing customer trust, and reducing financial risks.

⚠️ Mistakes to avoid

• Ignoring the factory audit
• Purchasing raw materials without quality checks
• Absence of interim control
• Complete dependency on the manufacturer’s word
• Undocumented inspection results

Tip: each stage of control should be documented both in writing and visually.

📊 Facts and Statistics

• 78% of importers of goods from China have faced quality problems at least once.
• The average defect rate without control: 10–15% of products.
• Systematic control reduces the number of defects to 2–3%.

Conclusion: investments in quality control pay off multiple times through reduced defects and returns.

❓ FAQ: Frequently Asked Questions

Q1: Which is more important — factory inspection or final inspection?
A1: Both stages are critical. The factory audit helps choose a reliable manufacturer, and FQC guarantees the quality of each batch.

Q2: How often should product inspections be conducted?
A2: At least once a month or for every large batch.

Q3: Can you fully trust a Chinese manufacturer without control?
A3: No. Even large factories can make mistakes.

Q4: How to choose an agent for independent inspection?
A4: Check their experience working with your product categories, customer reviews, and certifications.

📌 Conclusion

Establishing quality control in China is a systematic process that includes factory audits, raw material checks, process monitoring, final inspections, and product testing. By following the step-by-step guide and avoiding common mistakes, you guarantee product quality, increase customer trust, and reduce financial risks.