No.186 Xicheng District Popularity Ranking Beijing No.3 Energy Environmental Protection No.4 Laboratory Instruments Equipment No.4 Research Equipment No.7 Chemicals Equipment No.8 Chemicals Energy No.9 Trials Equipment No.9 Equipment Design No.10 Laboratory Equipment No.10 Liu Chemical Bed No.14 Coal Chemicals Technology No.17 Coal Chemicals No.30 Water Mirror 瞪羚企业 省级创新型中小企业 省级专精特新中小企业 市级专精特新中小企业 市级创新型中小企业 中关村高新技术企业