Domestic institutions of higher learning engaged in initiating explosive device research mainly include Beijing Institute of Technology, China Academy of Engineering Physics, Nanjing University of Science and Technology, north university of china and Anhui University of Science and Technology (civil). The research units mainly include China Ordnance Industry Group No.213, China Aerospace Science and Technology Group No.508, China Aerospace Science and Technology Group Aerospace Initiation Technology Research Institute, and Xi 'an Qinghua Group and many other production units.