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