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GIAI PHOTONICS CO., LTD.
Shanghai Aucy Scientific Instrument Co., Ltd.
OPTECK MANUFACTURING GROUP LTD.
China Xinxing Shanghai Import & Export Corporation
Shijiazhuang Zeyuan Optics Co., Ltd.
Shandong Sheenrun Optics & Electronics Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
CPG OPTICS LIMITED
VY Optoelectronics Co., Ltd.
Ergas Technology Co., Ltd.
Ningbo Hongbo Optical Instrument Co., Ltd.
Foshan Sident Technology Limited