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Shanghai Drawell Scientific Instrument Co., Ltd.
Tangshan UMG Medical Insrument Co., Ltd.
Dongguan Xin Bao Instrument Co., Ltd.
Dongguan City Gaoxin Testing Equipment Co., Ltd.
Huanghua Guangming Instrument Co., Ltd.
Zhejiang Tugong Instrument Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Zhengzhou CY Scientific Instrument Co., Ltd.
Shenzhen Lianxin Testing Equipment Co., Ltd.
TRYTE TECHNOLOGY (HUNAN) DEVELOPMENT CO., LTD.