No.54 Tongzhou District Popularity Ranking Beijing No.1 Sheng Hua Shi Agents No.2 Mei Lian Mian Yi No.2 Sheng Hua Zhen Duan Shi Agents No.3 Sheng Ming Ke Xue Shi Agents No.3 Clinical Biotechnology Chemistry No.4 Research Services No.4 Testing Reagents No.4 Xi Bao Sheng Wu Xue No.5 Testing Kits No.5 Kits No.6 Chong Zu Dan Bai No.7 Biotechnology Chemistry 名牌产品 瞪羚企业 国家知识产权优势企业 专利示范企业 中关村高新技术企业 省级高新技术企业 ISO9001认证