Nanchang Dajiang Instruments of Surveying and Mapping (GPS Quan Station Yishuizhunyi Duijiangji)

Experiment Detection Instrument (Laiyin Peninsula Shop)

Jingdian Instruments of Surveying and Mapping Meter

Xihu Measure Instruments and Apparatuses Testing Center

Zhongyi Instruments of Surveying and Mapping Nobody Jiquan Station Yi RTK Shuizhunyi

Nanchang Daidayin Machinery Equipment Co., Ltd.