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