On June 12th, an assessment expert group composed of security experts reviewed the safety standardization work of Dongfang Building Materials Co., Ltd. The expert group was based on the "Standard Measures for the Evaluation of Safety Fly Ash Brick Enterprises in Shandong Province (Trial Implementation)" and "Shandong Province Increase". The standard for assessment of safety and standardization of pressed coal-ash brick enterprises (for trial implementation), through reviewing relevant archival materials, viewing the site, communicating with management and on-site operators, gave a high evaluation of the company's safety standardization work, and after a comprehensive evaluation, agreed that , to achieve safety and standardization of secondary standards. And put forward rectification opinions and suggestions on the problems existing in the audit.