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Junhong Electronic & Technology Co., Ltd.
Zhengzhou Nanbei Instrument Equipment Co., Ltd.
Zhongke-Lian Sheng (Shenzhen) Technology Co., Ltd.
Dongguan V Finder Electronic Technology Co., Ltd.
Guangzhou DENS Technology Co., Limited
Weifang Better Heavy Machinery Science and Technology Co., Ltd.
Shenzhen Zhonganxie Technology Co., Ltd.
Hunan Puqi Geologic Exploration Equipment Institute (Common Partnership)