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Shenzhen Slinya Electronic Co., Ltd.
GIAI PHOTONICS CO., LTD.
OPTECK MANUFACTURING GROUP LTD.
Foshan Sident Technology Limited
Shanghai Aucy Scientific Instrument Co., Ltd.
Shenzhen Siyuan Digital Technology Co., Ltd.
Shanghai Drawell Scientific Instrument Co., Ltd.
Yiwu Wisdom Import & Export Co., Ltd.
VY Optoelectronics Co., Ltd.
Ningbo Hongbo Optical Instrument Co., Ltd.
Qidong Perfect Precise Tools Co., Ltd.
Nanjing Co-Energy Optical Crystal Co., Ltd.
Shijiazhuang Zeyuan Optics Co., Ltd.
Guangzhou Haike Outdoor Sport Co., Ltd.