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Changzhou Danrui Experimental Instrument Equipment Co., Ltd.
Movel Scientific Instrument Co., Ltd.
Zhengzhou CY Scientific Instrument Co., Ltd.
Guangdong Huilv Laboratory Equipment Scientific and Technological Co., Ltd.
Huanghua Faithful Instrument Co., Ltd.
Shandong China Coal Industrial & Mining Supplies Group Co., Ltd.
Jiangsu Yutong Drying Engineering Co., Ltd.
Labmen Instrument Limited