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Qidong Perfect Precise Tools Co., Ltd.
Movel Scientific Instrument Co., Ltd.
Guangzhou Haike Outdoor Sport Co., Ltd.
Yiwu Wisdom Import & Export Co., Ltd.
Ergas Technology Co., Ltd.
Shenzhen Slinya Electronic Co., Ltd.
OPTECK MANUFACTURING GROUP LTD.
Shandong Sheenrun Optics & Electronics Co., Ltd.
Wincom Company Ltd.
Zhejiang Top Cloud-Agri Technology Co., Ltd.
Qinhuangdao Intrinsic Crystal Technology Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
GIAI PHOTONICS CO., LTD.
Shanghai Drawell Scientific Instrument Co., Ltd.
Shenzhen Dowdon Tech Co., Ltd.