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Qidong Perfect Precise Tools Co., Ltd.
Guangzhou Haike Outdoor Sport Co., Ltd.
Nanjing Co-Energy Optical Crystal Co., Ltd.
Ningbo Hongbo Optical Instrument Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Yiwu Wisdom Import & Export Co., Ltd.
GIAI PHOTONICS CO., LTD.
Shenzhen Newerton Technology Co., Ltd.
CPG OPTICS LIMITED
Qinhuangdao Intrinsic Crystal Technology Co., Ltd.
Nanjing Poweam Medical Co., Ltd.
Wuhan Joho Technology Co., Ltd.
OPTECK MANUFACTURING GROUP LTD.
Shijiazhuang Zeyuan Optics Co., Ltd.
Biobase Biodustry (Shandong) Co., Ltd.