HIGHLY QUALIFIED TEAM OF ENGINEERS

CHANGLUN has a top-notch, highly qualified team of engineers. from raw materials to delivery, professional engineers are responsible for each process to ensure that the products meet customer needs;

PRODUCTION PROCESS CONTROL

We set up inspection points during the production process to ensure that product appearance, size and packaging meet quality requirements.

RAW MATERIALS

We give priority to well-known domestic and foreign suppliers and conduct raw material testing to ensure quality requirements from the source;

DIMENSION

CHANGLUN's product dimensions must meet the tolerance requirements of the product drawing design; our steel rims are inspected at each critical step of production, including 100% radial and lateral runout testing;

SURFACE TREATMENT

We adopt different surface treatment methods for our products according to the requirements of different customers; our products can meet the requirements of 500-1000 hours of salt spray test after electrophoresis and plastic spraying;

PACKAGING

Our product packaging provides different high-quality packaging requirements according to different transportation needs.

COMPLETE QUALITY MANAGEMENT SYSTEM

ISO 16949 : 2016

ISO 9001 : 2015

ISO 14001 : 2015

ISO 45001 : 2018

DOT CERTIFICATION