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Huanghua Guangming Instrument Co., Ltd.
Synotherm Ltd.
Tangshan UMG Medical Insrument Co., Ltd.
Shenzhen Lianxin Testing Equipment Co., Ltd.
Zhengzhou CY Scientific Instrument Co., Ltd.
TRYTE TECHNOLOGY (HUNAN) DEVELOPMENT CO., LTD.
Dongguan City Gaoxin Testing Equipment Co., Ltd.