TDK
S-Connect
KYOCERA OPTEC(Dongguan) Co., Ltd.
Olympus Hong Kong China Ltd.
SHENZHEN JIAYE PRECISION METAL CO.,LTD
DONG GUAN NIKON SURVEYING INSTRUMENTS CO.LTD.
Tokyo Optics (Dongguan) Technology Co., Ltd.
Oka Seiki (Shenzhen) Limted.
Dongguan Tengxin Precision Instrument Co., Ltd.
Dongguan Jinyuan Machinery Co., Ltd.
KAKINUMA (HONG KONG) CO., LIMITED
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