Xintong Experiment Instrument

Xingtongda Science Instrument Supply Station (23 Unit Shop)

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

Huatong Grain Instrument Laboratory Equipment (23 Unit Shop)

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

ASEAN Instruments of Surveying and Mapping (Daotai Unit Shop)