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Beijing Chaoyang DistrictNo.5 Chemistry FibersNo.8 HSENo.18 Coal Chemicals TechnologyNo.19 Shi You Tian Ran GasesNo.20 Coal ChemicalsNo.22 Ye Jin Kuang ChanNo.31 Oil and GasNo.34 Natural GasNo.42 Fine ChemicalsNo.55 PetroleumNo.61 ChemicalsNo.67 Petrochemicals科技型中小企业省级高新技术企业市级高新技术企业市科技型中小企业高新技术企业中关村高新技术企业