Changsha Yuhua District Hunan No.20 Communication No.22 Communication Engineering No.24 Construction Intelligence Chemical No.35 Cheng Shi Xin Informatization No.46 Xin Xi Xi Tong Ji Cheng No.89 Systems Engineering Zhi Hui Cheng Shi Yi Qi / Instruments System Integration Communication Technology Products Copies Nets Intelligent 科技型中小企业 省科技型中小企业 高新技术企业 省级高新技术企业 ISO9001认证 ISO14001认证 OHSAS18001认证