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Canfort Laboratory and Education Supplies Co., Ltd.
Jinan Youlyy Industrial Co., Ltd.
Chotest Technology Inc
Yuyao Jinshan Yuan Instrument Co., Ltd.
Jinhu Hanton Instrument and Meter Co., Ltd.
Shanghai RuiBiao Construction Machinery Co., Ltd.
SHAOXING KARE INSTRUMENT EQUIPMENT CO., LTD.
Ningbo Herovas Electronics Technology Co., Ltd.
Hubei YJT Technology Co., Ltd.
Chongqing Fengdu Biotechnology Co., Ltd.
Shandong China Coal Industrial & Mining Supplies Group Co., Ltd.