No.119 Yizhuang Development Zone Popularity Ranking Beijing No.1 Elevators No.1 Energy Performance Contracting No.2 Motors Drivers Controllers No.2 Bian Pin Diao Su Devices No.2 Industrial Energy Saving No.2 Energy Saving Frequency Converters No.2 Inverters No.2 Frequency Conversion Technology No.2 Servo Drives No.2 Servo Positioning Systems No.3 Frequency Converters No.3 Charging Pile 国家高新技术企业 高新技术企业 企业技术中心 中关村高新技术企业 省级高新技术企业 发明专利