No.244 Shenzhen Popularity Ranking No.12 Pingshan District No.522 Guangdong No.1 Sensor Technology No.1 Ocean Communication No.2 Guang Communication Systems No.2 Guang Shan No.2 Ou He Devices No.3 Optical Fiber Sensors No.3 Guang Communication Services No.3 Guang Communication Technology No.4 Ke Bian Engineering Controllers No.5 Guang Xian Lian Jie Devices No.5 Guang Components No.5 Laser Communication 市级高新技术企业 国家高新技术企业 高新技术企业 省级高新技术企业 ISO9001认证