The 702 Institute of First Academy of China Aerospace Science and Technology Corporation was established on November 23rd of 1956. With the existing fixed assets of one billion Yuan, we have 1100 employees and 800 intermediate and senior technical personnel. We also have a scientific research and production area of 330,000 square meters. We own more than 3400 sets of instruments and equipment, and have won hundreds of domestic and overseas prizes for our achievement in science and technology. We are one of the national third-class institutions of metrological technology, and the executive...