Xintong Experiment Instrument

Xintongda Science Instrument Supply Station (23 Unit Shop)

Huatong Grain Instrument Laboratory Equipment (23 Unit Shop)

Changchun Ketuo Science Instrument Co., Ltd. (Wansheng Business Harbor Shop)

Dawei Instruments of Surveying and Mapping

Zhongyi Instruments of Surveying and Mapping (Wansheng Xiandaicheng A Unit Branch)