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polypropylene
Polypropylene
Nitrogen Fertilizer
PA-6 CHIPS
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polypropylene
Data:2020-05-07 11:44:17
polypropylene/PP, usded as the raw material of disposable surgical mask
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ammonium sulp
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polypropylene
YueYang DeHong Chemical Co.,Ltd. ICP備案號(hào):湘ICP備17020064號(hào)