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No.7Pinggu District Popularity Ranking BeijingNo.4 Chemicals DesignNo.5 Dian Zi Dui KangNo.7 Electronics SystemsNo.8 Electronics Systems EngineeringNo.12 Track Road Transportation EngineeringNo.18 Engineering Technology ServicesNo.43 Jian Zhu Shi EngineeringNo.53 Energy Saving and Environmental ProtectionNo.53 City Township ConstructionNo.61 City ConstructionNo.70 Gong Cheng Zong Cheng BagNo.91 Zhi Hui Cheng Shi常务理事单位理事单位专精特新小巨人企业企业技术中心知识产权试点企业省级高新技术企业