In addition, the company also established a complete quality control system, from bearing steel raw materials, steel balls, cage parts procurement, storage, production, finished product testing, packaging and sale of the entire process, both as a guarantee of quality management system . In the production process, the company also uses the tooling equipment with the domestic advanced level: rough process using CNC turning technology, vacuum hardening heat treatment process to improve the bearing rings microstructure, hardness, fatigue strength and other process control performance, further improved bearing life.