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Shenzhen Haiwang Sensor Co., Ltd.
Ningbo Hongbo Optical Instrument Co., Ltd.
Guangzhou Haike Outdoor Sport Co., Ltd.
Qidong Perfect Precise Tools Co., Ltd.
OPTECK MANUFACTURING GROUP LTD.
Raylabel Instrument Co., Ltd.
Wuhan Joho Technology Co., Ltd.
Nanjing Co-Energy Optical Crystal Co., Ltd.
Shijiazhuang Zeyuan Optics Co., Ltd.
Shanghai Drawell Scientific Instrument Co., Ltd.
Shenzhen Xavier Precision Component Co., Ltd.