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Beijing Chaoyang DistrictNo.6 Chemistry FibersNo.7 EthyleneNo.7 Refined OilNo.9 Petroleum ProductsNo.11 Lian OilNo.13 Lian ChemicalNo.13 Ye Hua Tian Ran GasesNo.14 Thermal Energy EngineeringNo.15 Lian Oil TechnologyNo.16 Agriculture ChemicalNo.17 Hydrogen Energy CooperationNo.18 Polyethylene PE省部级科技进步奖科技进步奖市级文明单位文明单位名牌产品创新型企业ISO9001认证