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Shijiazhuang Zeyuan Optics Co., Ltd.
Nanjing Co-Energy Optical Crystal Co., Ltd.
Shenzhen Haiwang Sensor Co., Ltd.
Yiwu Wisdom Import & Export Co., Ltd.
Shenzhen Bonad Instrument Co., Ltd.
Qidong Perfect Precise Tools Co., Ltd.
Shenzhen Xavier Precision Component Co., Ltd.
Xi'an Heb Biotechnology Co., Ltd.
Foshan Sident Technology Limited
VY Optoelectronics Co., Ltd.
OPTECK MANUFACTURING GROUP LTD.
Guangzhou Haike Outdoor Sport Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Shenzhen Chuangxin Instruments CO., LTD.