Zhaoqing Hongrun Instrument Equipment Co., Ltd. (Guangrun Surveying And Mapping)

Jiangnan Electron Instrument

Mingyang Instruments of Surveying and Mapping (GPS. Quan Station Yi. Shuizhunyi. Duijiangji)

Yice Instrument

Guangrun Instruments of Surveying and Mapping (rtk Quan Station Yishuizhunyi gps)

Junji Refrigeration Parts Business Department (Lijing Nanwan Branch)