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