Guan Junwen, Deputy Director, Industrial Product Certification Division, Department of Certification Supervision and Administration, State Administration for Market Regulation, Yi Xiangrong, Deputy Director, Supervision and Random Inspection Division, Department of Quality and Safety Supervision and Administration, State Administration for Market Regulation, Li Xi, Department of Building Materials, Department of Raw Materials, Ministry of Industry and Information Technology, Shanghai Lu Cui-hyun, Product Quality and Safety Management Office of the Market Supervision Administration, Wang Yao, Executive Chairman of China Friction and Sealing Materials Association, General Manager of China Building Materials Research Institute and China Building Materials Inspection and Certification Group Co., Ltd. (hereinafter referred to as "National Inspection Group" ) Chairman Ma Zhenzhu, Former Deputy General Manager of China Non-Metallic Mining Industry Co., Ltd. / Former Dean and Party Secretary of Xianyang Non-Metallic Mining Research and Design Institute Yin Xiaodong, Former Secretary-General of China Automobile Brake Association Gu Yifan, Minister of Science and Technology Department of China National Inspection and Quarantine Group Qiu Yan, Chairman of Xiamen Branch of China Inspection Group, Shi Zhigang, Deputy General Manager of Xianyang Branch of China National Inspection and Inspection Group, Zhang Fan, Executive Deputy General Manager of China National Inspection and Quarantine Group (Shaanxi) Company, Jiao Hongbin, Deputy General Manager and other leaders and guests, as well as government departments, industry associations, scientific research More than 200 representatives from institutions, universities and enterprises, industry experts and scholars attended the conference.