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Zhengzhou CY Scientific Instrument Co., Ltd.
Wincom Company Ltd.
Huanghua Guangming Instrument Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Shanghai Powoo Industry Co., Ltd.
Shanghai Drawell Scientific Instrument Co., Ltd.
Dongguan City Gaoxin Testing Equipment Co., Ltd.
Dongguan Xin Bao Instrument Co., Ltd.
Shenzhen Lianxin Testing Equipment Co., Ltd.
Tangshan UMG Medical Insrument Co., Ltd.
Zhejiang Tugong Instrument Co., Ltd.