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Puyang Yongan Chemical Co., Ltd??? ?? ??? ?????.
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Puyang Yongan Chemical Co., Ltd
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0393-4624489 4624398
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pyyongan@pyinfo.net
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China
URL:
www.pyyongan.com
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3
1
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Calcium formate
??? ??
544-17-2
C2H2CaO4
Dipentaerythritol
????????
126-58-9
C10H22O7
1,3-Propanediol, 2,2-methylenebis(oxymethylene)bis2-(hydroxymethyl)-
1,3-?????,2,2-?????(?????)??2-(??????)-
6228-26-8
C11H24O8
1
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