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Huanghua Guangming Instrument Co., Ltd.
Tangshan UMG Medical Insrument Co., Ltd.
Anhui Sada Trading Co., Ltd.
Zhengzhou CY Scientific Instrument Co., Ltd.
Synotherm Ltd.
Shanghai Drawell Scientific Instrument Co., Ltd.
Shenzhen Lianxin Testing Equipment Co., Ltd.
Dongguan City Gaoxin Testing Equipment Co., Ltd.