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Guangzhou Haike Outdoor Sport Co., Ltd.
Wuhan Joho Technology Co., Ltd.
Yiwu Wisdom Import & Export Co., Ltd.
Guangzhou Yihua Electronic Equipment Co., Ltd.
Hangzhou Pnshar Technology Co., Ltd.
Shijiazhuang Zeyuan Optics Co., Ltd.
Qidong Perfect Precise Tools Co., Ltd.
Shenzhen Siyuan Digital Technology Co., Ltd.
Canfort Laboratory and Education Supplies Co., Ltd.
GIAI PHOTONICS CO., LTD.
VY Optoelectronics Co., Ltd.
OPTECK MANUFACTURING GROUP LTD.
Ningbo Hongbo Optical Instrument Co., Ltd.
Movel Scientific Instrument Co., Ltd.