No.69 Changsha Popularity Ranking No.30 Changsha County No.104 Hunan No.1 LED No.1 Communication Equipment No.2 Jing Mi Ling Components No.2 Boards Cards No.3 Power Supplies No.3 Power Equipment No.3 Transformers No.3 Auto Electronics No.4 Hardware No.4 Precision Machinery No.5 Power Distribution No.5 Communication Technology 驰名商标 高新技术企业 专精特新小巨人企业 省级高新技术企业 ISO14001认证 ISO/TS16949认证