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No.342Xicheng District Popularity Ranking BeijingNo.4 Huan Jing Guan Li Ti Xi CertificationNo.5 Electrical SafetyNo.5 Environment DetectionNo.6 Food SafetyNo.7 Safety DetectionNo.8 Huan Jing Guan Li Ti XiNo.9 Zhi Ye Jian Kang An Quan Guan Li Ti Xi CertificationNo.9 Services CertificationNo.11 An Quan Jian ChaNo.13 Ren Zheng Ren KeNo.14 Inspection CertificationNo.15 Shi Pin Wei Sheng国家高新技术企业高新技术企业常务理事单位省级高新技术企业市级高新技术企业ISO14001认证ISO22000认证ISO27001认证