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Qingdao Langyatai (Group) Co., Ltd??? ?? ??? ?????.
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Qingdao Langyatai (Group) Co., Ltd
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0532-85131399
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sales@langyatai.com
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China
URL:
www.langyatai.com
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2
1
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Kojic acid
???
501-30-4
C6H6O4
Itaconic acid
?????
97-65-4
C5H6O4
1
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