National Astronomical Observatories of Chinese Academy of Sciences GRAS-70 meters antenna hoisting project honorary certificate_SHANDONG GULF LIFTING ENGINEERING CO.,LTD.

National Astronomical Observatories of Chinese Academy of Sciences GRAS-70 meters antenna hoisting project honorary certificate

中科院国家天文台GRAS-70米天线吊装工程荣誉证书.png

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