Quality Assurance
"Crafting Reliable Engineering with Yongrui Cables" — 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
Electrical Performance
- ● Insulation resistance test
- ● Withstand voltage test
- ● Continuity test
- ● Voltage drop test
- ● Electrical parameter test
- ● Zero-power resistance/B-value test
Physical & Mechanical
- ● Tensile test
- ● Wire bending test
- ● Low-temperature cold flex test
- ● Automotive wire abrasion resistance
- ● Terminal cross-section analysis
- ● Terminal insertion/extraction force
Environmental & Reliability
- ● 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 ≤3mbar
- Insulation: 1000V DC, >1000MΩ
- Withstand voltage: 3500V AC, leakage ≤5mA
