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Zhengzhou CY Scientific Instrument Co., Ltd.
Dongguan City Gaoxin Testing Equipment Co., Ltd.
Wuxi JinyiBo Instrument Technology Co., Ltd.
Nanjing T-Bota Scietech Instruments & Equipment Co., Ltd.
Yueqing Haixin Electronic Science Technology Co., Ltd.
Shenzhen Pride Instrument Inc.
Zhengzhou Nanbei Instrument Equipment Co., Ltd.
Laizhou Weiyi Experimental Machinery Manufacture Co., Ltd.
Qingdao Tlead International Co., Ltd.
Shenzhen Bonad Instrument Co., Ltd.
Sino Age Development Technology
Guangzhou Haike Outdoor Sport Co., Ltd.