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Huanghua Guangming Instrument Co., Ltd.
Tangshan UMG Medical Insrument Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Wincom Company Ltd.
Synotherm Ltd.
Shanghai Drawell Scientific Instrument Co., Ltd.
Jiangsu Tianyuan Experiment Equipment Co., Ltd.
Dongguan City Gaoxin Testing Equipment Co., Ltd.