On the morning of September 3, 2019, Li Wei, General Manager of Qingdao Liyang Rubber Technology Co., Ltd., and a delegation of four visited and inspected the National Tire and Rubber Product Quality Supervision and Inspection Center of Qingdao Product Quality Supervision and Inspection Research Institute. They were warmly received by Minister He Ning and other leaders, and the two sides exchanged ideas on further deepening cooperation and business expansion.