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500587-39-3 suppliers list
Company Name: Changzhou Kechem Bio-Scientific Co., LTD.  
Telephone: 0519-68985668 13685222090
Website: http://www.kechem.cn/
Company Name: Shandong Dayou Pharmaceutical Research and Development Co., Ltd.  
Telephone: dayouchem@126.com 15165037910
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