The company has passed ISO90001: 2008 quality management system certification in 2011 and established complete mode of performance appraisal. Our internal quality control includes first inspection, mutual inspection, in-process quality control and sampling inspection to ensure product quality. The company has complete testing equipment and advanced testing method.  
We upholds the principle of prevention first and continuous improvement and has imported KPI for product quality control. Over the past five years, our product inspection pass rate is over 99.5%. Customer response rate in last three years is less than 0.05%. High product quality and excellent service have been praised by customers home and abroad.