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Nanjing Co-Energy Optical Crystal Co., Ltd.
Nanjing Poweam Medical Co., Ltd.
Guangzhou Haike Outdoor Sport Co., Ltd.
Shijiazhuang Zeyuan Optics Co., Ltd.
Shenzhen Siyuan Digital Technology Co., Ltd.
GIAI PHOTONICS CO., LTD.
Shanghai Aucy Scientific Instrument Co., Ltd.
Yiwu Wisdom Import & Export Co., Ltd.
Qidong Perfect Precise Tools Co., Ltd.
Ningbo Hongbo Optical Instrument Co., Ltd.
VY Optoelectronics Co., Ltd.
Ergas Technology Co., Ltd.
Labmen Instrument Limited
TRYTE TECHNOLOGY (HUNAN) DEVELOPMENT CO., LTD.
OPTECK MANUFACTURING GROUP LTD.