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Shijiazhuang Zeyuan Optics Co., Ltd.
Foshan Sident Technology Limited
Shenzhen Newerton Technology Co., Ltd.
VY Optoelectronics Co., Ltd.
Ergas Technology Co., Ltd.
Shenzhen Chuangxin Instruments CO., LTD.
Shanghai Aucy Scientific Instrument Co., Ltd.
Guangzhou Haike Outdoor Sport Co., Ltd.
TRYTE TECHNOLOGY (HUNAN) DEVELOPMENT CO., LTD.
GIAI PHOTONICS CO., LTD.
Movel Scientific Instrument Co., Ltd.
Yiwu Wisdom Import & Export Co., Ltd.
Shenzhen Bonad Instrument Co., Ltd.
OPTECK MANUFACTURING GROUP LTD.
Xi'an Heb Biotechnology Co., Ltd.