No.41 Changsha Popularity Ranking No.15 Changsha County No.52 Hunan No.1 Electronics Engineering No.1 Charging Equipment No.1 Testing Instruments No.1 Tooling Clamps Tools No.1 Modules Chemical Design No.1 Power Technology No.2 Power Electronics No.2 Xian Shu No.2 Ce Kong No.2 Power Electronics Equipment No.2 Power Supplies No.2 Integrated Circuits 高新技术企业 科技型中小企业 省级专精特新中小企业 专精特新小巨人企业 省级高新技术企业 省科技型中小企业 发明专利 省级创新型中小企业