公安部第二研究所
Institute of Forensic Science
Ministry of Public Security
公安部第一研究所
The No.1 Research Institute of the Ministry of Public Security
Beijing 10044
公安部法规局
The Bureau of Policies and Regulations of the Ministry of Public Security
公安部上海消防研究所
shanghai fire research institute
Ministry of Public Security
公安部四川消防研究所
sichuan fire research institute
public security ministry dujiangyan
企业内部机制
enterprise inner mechanism