Qingfeng is proud to announce that we have successfully passed the ISO 9001 : 2015 quality management system certification for the 8th time on January 6, 2020.
Comprehensive quality control and strict production process are our long-term business philosophy, Qingfeng always adheres to the system and process as the management basis,
and takes customer needs as the focus, and continuously improves customer satisfaction, provides reliable products and service.
