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No.48Huairou District Popularity Ranking BeijingNo.5 Heating Supply SystemsNo.6 Re Hui ShouNo.7 She Bei Yun WeiNo.8 Energy Saving RenovationNo.10 Waste Heat RecoveryNo.12 HeatingNo.15 Energy Saving ServicesNo.19 Refrigeration EngineeringNo.21 RefrigerationNo.22 Energy Saving DevicesNo.24 Energy Saving TechnologyNo.26 Smart Control实用新型专利常务理事单位理事单位高新技术企业市级高新技术企业