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VY Optoelectronics Co., Ltd.
GIAI PHOTONICS CO., LTD.
Shenzhen Xavier Precision Component Co., Ltd.
Guangzhou Haike Outdoor Sport Co., Ltd.
Shijiazhuang Zeyuan Optics Co., Ltd.
Canfort Laboratory and Education Supplies Co., Ltd.
Qinhuangdao Intrinsic Crystal Technology Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Qidong Perfect Precise Tools Co., Ltd.
Ningbo Hongbo Optical Instrument Co., Ltd.
Shenzhen Bonad Instrument Co., Ltd.
OPTECK MANUFACTURING GROUP LTD.
Shenzhen Chuangxin Instruments CO., LTD.
Nanjing Poweam Medical Co., Ltd.
Shenzhen Lite Technology Limited