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VY Optoelectronics Co., Ltd.
Shenzhen Haiwang Sensor Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
GIAI PHOTONICS CO., LTD.
Ningbo Hongbo Optical Instrument Co., Ltd.
Shijiazhuang Zeyuan Optics Co., Ltd.
Qinhuangdao Intrinsic Crystal Technology Co., Ltd.
Shanghai Drawell Scientific Instrument Co., Ltd.
Nanjing Co-Energy Optical Crystal Co., Ltd.
Guangzhou Yihua Electronic Equipment Co., Ltd.
Shenzhen Ereagle Technology Co., Ltd.
Shenzhen Xavier Precision Component Co., Ltd.
OPTECK MANUFACTURING GROUP LTD.
Raylabel Instrument Co., Ltd.