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Canfort Laboratory and Education Supplies Co., Ltd.
Shenzhen Haiwang Sensor Co., Ltd.
OPTECK MANUFACTURING GROUP LTD.
Yiwu Wisdom Import & Export Co., Ltd.
Shenzhen Lite Technology Limited
GIAI PHOTONICS CO., LTD.
Shanghai Drawell Scientific Instrument Co., Ltd.
Qidong Perfect Precise Tools Co., Ltd.
Shenzhen Handsome Technology Co., Ltd.
Shenzhen Xavier Precision Component Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Ningbo Hongbo Optical Instrument Co., Ltd.
Nanjing Poweam Medical Co., Ltd.
VY Optoelectronics Co., Ltd.
Shenzhen Siyuan Digital Technology Co., Ltd.
Shijiazhuang Zeyuan Optics Co., Ltd.