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Guangzhou Yihua Electronic Equipment Co., Ltd.
Shijiazhuang Zeyuan Optics Co., Ltd.
Ningbo Hongbo Optical Instrument Co., Ltd.
GIAI PHOTONICS CO., LTD.
Canfort Laboratory and Education Supplies Co., Ltd.
Jinan Hope Wish Photoelectronic Technology Co., Ltd.
Shenzhen Haiwang Sensor Co., Ltd.
Shenzhen Xavier Precision Component Co., Ltd.
VY Optoelectronics Co., Ltd.
CPG OPTICS LIMITED
Ergas Technology Co., Ltd.
Qinhuangdao Intrinsic Crystal Technology Co., Ltd.
Movel Scientific Instrument Co., Ltd.
OPTECK MANUFACTURING GROUP LTD.
Raylabel Instrument Co., Ltd.