Chongqing Yubei District No.7 Industrial Safety No.12 Power Transmission and Distribution Engineering No.12 Power Technology No.12 Power Facilities No.16 Control Equipment No.17 Song Bian Dian No.20 Power Transmission and Distribution No.22 Substations Engineering No.30 Electromechanical Engineering Design No.31 Survey Design Institute No.34 Construction Electromechanical Engineering No.49 Electromechanical Engineering 省级高新技术企业 市级高新技术企业 高新技术企业 市级创新型中小企业 市级专精特新中小企业 ISO9001认证 ISO14001认证 OHSAS18001认证