No.229 Fengtai District Popularity Ranking Beijing No.1 Electrical Cabinet No.2 Power Distribution Cabinet No.3 PLC Control No.3 Cables No.3 Ke Bian Cheng Luo Ji No.4 An Quan Guang Shan No.5 Chan Ye Gui Hua No.5 Kong Zhi Xi Tong Ji Cheng No.5 Ke Bian Engineering Controllers No.5 San Wei Ke Shi Chemical No.5 Industrial Products Copies No.6 Dian Yuan Lv Bo Devices 高新技术企业 企业技术中心 知识产权试点企业 中关村高新技术企业 省级高新技术企业 市级高新技术企业