- Shanghai Scientific Instrument Manufacturing Co., Ltd.
- Address:No. 5 Yuanda Rd., Shanghai, P. R. China
- Kangput Electronic Technology Co., Ltd
- Address:XiaoGang Road, Zhangzhou, Fujian, China
- Hangzhou HOPOO Optoelectronics Technology Co., ...
- Address:Xiyuan 1 road, Hangzhou, China
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