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Raylabel Instrument Co., Ltd.
VY Optoelectronics Co., Ltd.
Qidong Perfect Precise Tools Co., Ltd.
OPTECK MANUFACTURING GROUP LTD.
Ningbo Hongbo Optical Instrument Co., Ltd.
Movel Scientific Instrument Co., Ltd.
GIAI PHOTONICS CO., LTD.
Guangzhou Haike Outdoor Sport Co., Ltd.
Biobase Biodustry (Shandong) Co., Ltd.
Shijiazhuang Zeyuan Optics Co., Ltd.
Geomaster Group
Wuhan Joho Technology Co., Ltd.
Shanghai Aucy Scientific Instrument Co., Ltd.
China Xinxing Shanghai Import & Export Corporation
Foshan Sident Technology Limited