On the morning of November 11, Zhao Changjun, deputy director of Shandong Provincial Government Research Office, and a delegation of 9 people visited Tianrui Heavy Industry for investigation. Zhang Zhihai, Deputy Secretary General of Weifang Municipal government and director of the research office, Fang Guo, second level Commissioner of the Management Committee of the high tech Zone, Ma Zhongping, deputy chairman of the finance and Economic Commission of the Municipal People's Congress, second level inspector and deputy leader of the special class for the promotion of magnetic industry development and application, accompanied the investigation.