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Ningbo Hongbo Optical Instrument Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Guangzhou Haike Outdoor Sport Co., Ltd.
Quanzhou Jupin Group Co., Ltd.
Shenzhen Haiwang Sensor Co., Ltd.
Henan Forever Medical Co., Ltd.
OPTECK MANUFACTURING GROUP LTD.
Qidong Perfect Precise Tools Co., Ltd.
Shenzhen Siyuan Digital Technology Co., Ltd.
Nanjing Co-Energy Optical Crystal Co., Ltd.
Chongqing Gold Mechanical & Electrical Equipment Co., Ltd.
VY Optoelectronics Co., Ltd.