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Ningbo Hongbo Optical Instrument Co., Ltd.
Shenzhen Haiwang Sensor Co., Ltd.
OPTECK MANUFACTURING GROUP LTD.
Shijiazhuang Zeyuan Optics Co., Ltd.
CPG OPTICS LIMITED
Labmen Instrument Limited
Guangzhou Haike Outdoor Sport Co., Ltd.
Wincom Company Ltd.
Shenzhen Bonad Instrument Co., Ltd.
VY Optoelectronics Co., Ltd.
GIAI PHOTONICS CO., LTD.
Henan Forever Medical Co., Ltd.
Qinhuangdao Intrinsic Crystal Technology Co., Ltd.
Shenzhen Dowdon Tech Co., Ltd.