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Shenzhen Xavier Precision Component Co., Ltd.
Wincom Company Ltd.
GIAI PHOTONICS CO., LTD.
Qinhuangdao Intrinsic Crystal Technology Co., Ltd.
OPTECK MANUFACTURING GROUP LTD.
Ergas Technology Co., Ltd.
Hangzhou Pnshar Technology Co., Ltd.
Labmen Instrument Limited
Ningbo Hongbo Optical Instrument Co., Ltd.
Shijiazhuang Zeyuan Optics Co., Ltd.
Qidong Perfect Precise Tools Co., Ltd.
Shenzhen Siyuan Digital Technology Co., Ltd.
Wuhan Joho Technology Co., Ltd.