Optics Instruments of Surveying and Mapping

Beidou Instruments of Surveying and Mapping (GPS Duijiangji)

Instruments of Surveying and Mapping Huace GPS Quan Station Yijingweiyi Shuizhunyi Cejuyi

Mingyuan Electric Automation

Xinhua Company Experiment Instrument

Chemical Glass Instrument (Renmin Road Branch)