No.136 Zhuankou Development Zone Popularity Ranking Wuhan Hubei No.3 Dian Qi Shi Yan No.3 Dian Liu Dian Ya Hu Sensors No.3 Instrument Transformers No.6 Test Equipment No.8 Trials Equipment No.9 Power Technology No.12 Testing Machines No.12 Hydropower No.18 Ke Xue Instruments No.18 Smart Grid No.27 Power Grid No.28 Power Stations 高新技术企业 科技型中小企业 国家知识产权优势企业 企业技术中心 省级知识产权优势企业 专精特新小巨人企业 CNAS认证