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Ningbo Hongbo Optical Instrument Co., Ltd.
Shijiazhuang Zeyuan Optics Co., Ltd.
Yiwu Wisdom Import & Export Co., Ltd.
Guangzhou Haike Outdoor Sport Co., Ltd.
TRYTE TECHNOLOGY (HUNAN) DEVELOPMENT CO., LTD.
Nanjing Co-Energy Optical Crystal Co., Ltd.
China Xinxing Shanghai Import & Export Corporation
OPTECK MANUFACTURING GROUP LTD.
Shenzhen Siyuan Digital Technology Co., Ltd.
Canfort Laboratory and Education Supplies Co., Ltd.
Shenzhen Haiwang Sensor Co., Ltd.
Nanjing Puao Medical Equipment Co., Ltd.