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Shanghai Drawell Scientific Instrument Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Huanghua Guangming Instrument Co., Ltd.
Anhui Sada Trading Co., Ltd.
Tangshan UMG Medical Insrument Co., Ltd.
Zhengzhou CY Scientific Instrument Co., Ltd.
Wincom Company Ltd.
Movel Scientific Instrument Co., Ltd.
Dongguan Xin Bao Instrument Co., Ltd.