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Guangzhou Haike Outdoor Sport Co., Ltd.
OPTECK MANUFACTURING GROUP LTD.
Shijiazhuang Zeyuan Optics Co., Ltd.
Qidong Perfect Precise Tools Co., Ltd.
VY Optoelectronics Co., Ltd.
Labmen Instrument Limited
Jiaxing Yaou Optical Technology Co., Ltd.
Nanjing Co-Energy Optical Crystal Co., Ltd.
Canfort Laboratory and Education Supplies Co., Ltd.
Shenzhen Xavier Precision Component Co., Ltd.
Shenzhen Slinya Electronic Co., Ltd.
Guangzhou Yihua Electronic Equipment Co., Ltd.
Qinhuangdao Intrinsic Crystal Technology Co., Ltd.
Biobase Biodustry (Shandong) Co., Ltd.
Shenzhen Dowdon Tech Co., Ltd.
GIAI PHOTONICS CO., LTD.