How many subordinate units does China Ordnance Group have in Xi 'an?

Overview of Xi military enterprise \r\n \ r \ China Aerospace Science and Technology Corporation \ r \ nInstitute of Aerospace Power Technology \ r \ nXi 'an Xiangyang Aerospace Materials Co., Ltd. \ r \ nXi 'an Xiangyang Aerospace Materials Co., Ltd. Special Rubber Factory \ r \ nXi 'an Xiangyang Aerospace Materials Co., Ltd. Composite Pipe Factory \ r \ nXi 'an Xiangyang Aerospace Materials Co., Ltd. Sword Belt Factory \ r \ N Xi 'an Xiangyang Aerospace Materials Co., Ltd. Sword Belt Factory N An Xiangyang Aerospace Materials Co., Ltd. Protective Film Branch \r\n\r\n Shaanxi Zhongtian Rocket Technology Co., Ltd. \r\n An Aerospace Star Technology Co., Ltd. \r\n Aerospace Propulsion Technology Research Institute \r\n Shaanxi Aerospace Power High-tech Co., Ltd. \r\n An Aerospace Huayang Printing and Packaging Equipment Co., Ltd. \r\n An Space Radio Technology Research Institute. N Shaanxi Aerospace Power High-tech Co., Ltd. \r\n An Aerospace Scientific Research Fluid Control Co., Ltd. \r\n Shaanxi Power Machinery Design Institute \r\n Xi An Aerospace Power Testing Technology Institute \r\n Shaanxi Aerospace Power High-tech Co., Ltd. \r\n Xi An Aerospace Metrology and Testing Institute \r\n Xi An Microelectronics Technology Institute \r\n Aerospace Chemical Power Institute \r\ n N Xi Anhejian Concrete Co., Ltd., Ltd. \r\n Xi 'an Institute of Navigation Technology, China Electronics Technology Group \r\ nNorthwest Institute of Electronic Equipment \r\n Xi Anbei Huian Chemical Co., Ltd. \r\n Xi Anbei Photoelectric Co., Ltd. \r\n Xi Anbei Huashan Electromechanical Co., Ltd. \ r \ nXi Anbei Qin. N Xi Anbei Tsinghua Electromechanical Group Co., Ltd. \r\n Xi Anqinchuan Motor Manufacturing Co., Ltd. Nxi Anqinchuan Special Power Supply Co., Ltd. \ r \ N Xi An Institute of Applied Optics \r\n Xi An Institute of Modern Chemistry \r\n Xi An Weishi Photoelectric Technology Co., Ltd. \r\n Xi An Institute of Electronic Engineering \ r \. R\n China Southern Industrial Automobile Co., Ltd. \r\n Xi Kunlun Industry (Group) Co., Ltd. \r\n Xi 'an Anhe Equipment Factory \r\n China Yihang Xi 'an Aviation Power Control Company \r\n Xi 'an Marine Equipment Industry Company \r\n Hualei Machinery and Electronics Group \r\n Xi. \ R \ nShaanxi Pingyang Heavy Industry Machinery Co., Ltd. \r\n Xi 'an Tsinghua Civil Blasting Equipment Co., Ltd. \r\n Xi 'an Marine Equipment Industry Company \ r \ nShaanxi Diesel Engine Factory \r\n Xi 'an Taiyi Company \ r \ nChina Marine Medium Speed Diesel Engine Cylinder Head Casting Center \r\n Xi 'an Nonferrous Casting Branch \r\n Xi 'an Aircraft International Aviation Manufacturing Co., Ltd. N Xi An Aircraft Industry Chenguang Industry and Trade Co., Ltd. \r\n Xi An Aircraft Industry Wulong Co., Ltd. \r\n Xi An Feitian 'ao Metal Building Materials Co., Ltd. \r\n Xi An Xi Wo Bus Co., Ltd. \ r \ nQing An Group Co., Ltd. \r\n Xi An Qing An Refrigeration Equipment Co., Ltd. \r\n Xi An Qing An Electric Control Co., Ltd. \r\n Xi An Qing.