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Guangzhou Haike Outdoor Sport Co., Ltd.
Shijiazhuang Zeyuan Optics Co., Ltd.
Nanjing Poweam Medical Co., Ltd.
Shenzhen Ereagle Technology Co., Ltd.
Movel Scientific Instrument Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Qinhuangdao Intrinsic Crystal Technology Co., Ltd.
Qidong Perfect Precise Tools Co., Ltd.
Wuhan Joho Technology Co., Ltd.
Ergas Technology Co., Ltd.
Labmen Instrument Limited
OPTECK MANUFACTURING GROUP LTD.
Xi'an Heb Biotechnology Co., Ltd.