Quality Assurance
"Crafting Reliable Engineering with Yongrui Cables" ā A full-lifecycle quality management system.
Comprehensive Quality Management
We implement a full-lifecycle quality management system covering R&D, procurement, production, testing, and after-sales service. Every wiring harness undergoes rigorous testing and inspection to ensure zero-defect delivery and compliance with international standards.
Our quality philosophy is backed by advanced facilities including ultrasonic welding technology, 5-in-1 electrical testing systems, and precision measurement equipment. We maintain continuous improvement through innovation and investment in people and technology.
- ISO 9001:2015 Quality Management System
- IATF 16949:2016 Automotive Quality Management
- GJB 9001C Military Quality Management
- International Certs: VDE, UL, CSA, SAA

Advanced Testing Capabilities
- ⢠Insulation resistance test
- ⢠Withstand voltage test
- ⢠Continuity test
- ⢠Voltage drop test
- ⢠Electrical parameter test
- ⢠Zero-power resistance/B-value test
- ⢠Tensile test
- ⢠Wire bending test
- ⢠Low-temperature cold flex test
- ⢠Automotive wire abrasion resistance
- ⢠Terminal cross-section analysis
- ⢠Terminal insertion/extraction force
- ⢠Flame retardant test
- ⢠Glow wire test
- ⢠Aging test
- ⢠High/Low temp cycle test
- ⢠Salt spray corrosion test
- ⢠Waterproof test (IP rating)
Strict Process Control
Incoming Material Inspection (IQC)
Strictly screen and inspect key raw materials such as oxygen-free copper wires, PVC pellets, and high-temperature silicone wires. We verify compliance with technical specifications before materials enter production.
In-Process Quality Control
Implement first-piece inspection and patrol inspection mechanisms. We conduct 100% continuity and appearance inspections for all semi-finished products.
Standardized Testing:
- Air tightness: 0.3bar, leakage ā¤3mbar
- Insulation: 1000V DC, >1000MĪ©
- Withstand voltage: 3500V AC, leakage ā¤5mA
