On January 10, 2016, Tan Yingjian, the general manager of Shenzhen Zhanggonghe Precision Hardware Co., Ltd., was invited to participate in the "Innovative Service, Trust and Win win: High end Seminar" held by Guangdong Quality Inspection Zhongcheng Certification Co., Ltd. in Dongguan, and attended the forum as a nonvoting delegate. With more than 30 years of experience in hardware and machine design and manufacturing, he shared two stories about quality, and talked about quality experience and feelings, Explain the role and significance of adhering to quality. Since the first ISO9001 quality management system certification in 2008, Shenzhen Zhanggonghe Precision Hardware Co., Ltd. has always adhered to highly conscious quality, service awareness and habits, and was rated as "high-quality VIP customer".