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Guangdong Zhongshi Metals Co., Ltd.
Hangzhou Nutrition Biotechnology Co.,Ltd
Taizhou Dongna Mechanical & Electrical Co.,Ltd
Tangshan UMG Medical Insrument Co., Ltd.
Shenzhen Lianxin Testing Equipment Co., Ltd.
Dongguan City Gaoxin Testing Equipment Co., Ltd.
Huanghua Guangming Instrument Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Xi'an LIB Environmental Simulation Industry
Synotherm Ltd.
Zhengzhou CY Scientific Instrument Co., Ltd.
Shanghai Drawell Scientific Instrument Co., Ltd.