Our Five Core China Quality Control Inspection Stages

1. Quality control in china factory Audit: Selecting Reliable Manufacturers

Pre-cooperation due diligence determines success or failure.
Our senior QC experts conduct on-site supplier audits to assess:

• Factory qualifications & production capacity
• quality control in China management systems (ISO, BSCI, etc.)
• Technical capabilities & past project experience
• Workforce stability & management efficiency

We can also coordinate independent audits through SGS, Intertek, or BV, ensuring supplier authenticity and reliability.

2. Pre-Production Inspection (PPI): Securing the First Gate

Raw materials define product quality — and cost-driven substitutions are common in manufacturing.

Before production begins, we verify quality control in China:

• Whether raw materials match the agreed specifications
• Color, texture, and composition consistent with approved samples
• Packaging materials’ durability and compliance

Early-stage control prevents “cheap replacements” and ensures consistency across orders.

3. During Production Inspection (DUPRO): Real-Time Quality Monitoring

Mid-production is the golden window to detect problems early.
Our inspectors conduct on-site line checks to ensure:

• First-article samples meet quality benchmarks
• Workmanship and processes follow standards
• No signs of batch-level defects or deviations

When issues arise, we coordinate immediate corrective actions with the factory — preventing costly mass defects.

📊 Weekly photo reports keep you updated with transparent production progress.

4. Pre-Shipment Inspection (PSI): The Final Quality Gate

Before goods are loaded, our team performs a comprehensive random inspection following the AQL (Acceptable Quality Level) standard, covering:

• Functional testing (assembly, usability, performance)
• Visual defects (scratches, color deviation, stains)
• Packaging integrity (drop, compression, sealing tests)
• Label verification (brand logo, barcode, FBA label accuracy)

We also perform simulated transportation drop tests to ensure products withstand international shipping conditions.

5. Laboratory Testing: Certified & Compliant Products

To meet international compliance standards for EU, US, and global markets, we partner with certified domestic and global laboratories.