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Ningbo Hongbo Optical Instrument Co., Ltd.
VY Optoelectronics Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Wuhan Joho Technology Co., Ltd.
Shenzhen Siyuan Digital Technology Co., Ltd.
GIAI PHOTONICS CO., LTD.
OPTECK MANUFACTURING GROUP LTD.
Nanjing Puao Medical Equipment Co., Ltd.
Qidong Perfect Precise Tools Co., Ltd.
Ergas Technology Co., Ltd.
Shenzhen Xavier Precision Component Co., Ltd.
Qinhuangdao Intrinsic Crystal Technology Co., Ltd.