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Junhong Electronic & Technology Co., Ltd.
Shenzhen Zhonganxie Technology Co., Ltd.
Zhongke-Lian Sheng (Shenzhen) Technology Co., Ltd.
Weifang Better Heavy Machinery Science and Technology Co., Ltd.
Hongkong Joint Stars Group Limited
Beijing Topsky Century Holding Co., Ltd.
Guangzhou DENS Technology Co., Limited
Hunan Puqi Geologic Exploration Equipment Institute (Common Partnership)