“Five-step rigorous selection process ensures 100% reliability of the factory”

Level-by-level screening ensures supply chain quality

5 Steps to In-depth Factory Qualification Verification

Preliminary Screening

1.Business Registration Information Verification (Provide Sample Business License Screenshot)
2.Business Scope & Production License Inspection
3.Corporate Credit Rating (Show Rating System, such as AAA)

Preliminary Screening

Quality System Audit

1.ISO 9001, ISO14001, IATF 16949 2.SGS, UL, RoHS, CE Certification 3.Supplier Compliance Rating

Quality System Audit

Sample Testing

1.Material Testing
2. Internal Laboratory vs. Third-party testing comparison
3. Unqualified sample elimination rate

Sample Testing

Factory Field Visit

1.Production equipment inspection 2.Production process & quality control
3.Core supply chain inspection

Factory Field Visit

Regular Review

1.Quarterly & annual review system 2.Supplier blacklist mechanism 3.Review pass rate statistical chart

Regular Review

Customer Cases

What Is Prepreg Material and How to Choose It? | SIDA Guide

What Is Prepreg Material and How to Choose It? | SIDA Guide

Prepreg resin—short for pre-impregnated materials—refers to reinforcement fabrics already saturated with a partially cured polymer…

What Types of Insulation Materials Are There? A Complete Guide

What Types of Insulation Materials Are There? A Complete Guide

Electrical insulation materials form the backbone of safe, reliable power distribution across every voltage class.…

FR4 Sheet: The Best Fiberglass Lapping Carrier for Polishing

FR4 Sheet: The Best Fiberglass Lapping Carrier for Polishing

Precision polishing demands more than abrasive grit and coolant. Engineers and procurement managers in PCB,…

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