On March 10, 2011, we held the Provincial Appraisal Meeting on Spherical Bearing TJGZ-Q at China Railway Eryuan Engineering Group Co., Ltd. The attendees include the experts and professors from Sichuan Technology Department, China Railway Eryuan Engineering Group Co., Ltd., China Railway wuyuan Engineering Group Co., Ltd., Shanghai DesignInstitute of China Railway, Sichuan Survey & Design Institute, Southwest Jiaotong University, Zhejiang University and Shandong Architecture.