No.65 Fengtai District Popularity Ranking Beijing No.1 Control Instruments No.2 DC DC Power Supplies No.2 DCDC No.3 Switching Power Supplies No.3 Switches No.3 Inverters No.3 Dian Yuan Lv Bo Devices No.4 Power Supplies Modules No.6 She Pin Qian Duan No.6 Communication Network No.7 Lv Bo Devices No.13 Modules Chemical Design 高新技术企业 科技型中小企业 瞪羚企业 企业技术中心 省级高新技术企业 市级高新技术企业 ISO9001认证 ISO14001认证 OHSAS18001认证