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Ningbo Hongbo Optical Instrument Co., Ltd.
OPTECK MANUFACTURING GROUP LTD.
Nanjing Co-Energy Optical Crystal Co., Ltd.
GIAI PHOTONICS CO., LTD.
Shijiazhuang Zeyuan Optics Co., Ltd.
Canfort Laboratory and Education Supplies Co., Ltd.
Quanzhou Jupin Group Co., Ltd.
Labmen Instrument Limited
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Ergas Technology Co., Ltd.
Foshan Sident Technology Limited
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