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Guangzhou Yihua Electronic Equipment Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Guangzhou Haike Outdoor Sport Co., Ltd.
OPTECK MANUFACTURING GROUP LTD.
Wuhan Joho Technology Co., Ltd.
Ningbo Hongbo Optical Instrument Co., Ltd.
Movel Scientific Instrument Co., Ltd.
Shenzhen Haiwang Sensor Co., Ltd.
Xi'an Heb Biotechnology Co., Ltd.
Shanghai Aucy Scientific Instrument Co., Ltd.
Shenzhen Siyuan Digital Technology Co., Ltd.
Shenzhen Ereagle Technology Co., Ltd.
TRYTE TECHNOLOGY (HUNAN) DEVELOPMENT CO., LTD.
Qidong Perfect Precise Tools Co., Ltd.
VY Optoelectronics Co., Ltd.