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Polyvinyl alcohol (PVA) with a degree of polymerization of 1750具体是什么东西?
Polyvinyl alcohol (PVA) with a degree of polymerization of 1750 and an
alcoholysis degree higher than 99% was from Lanzhou Vinylon Factory (China).这是文章里的原话,请问这两种东西具体是什么?
人气:386 ℃ 时间:2020-06-21 06:34:48
解答
(中国)兰州维尼纶厂生产的1750聚合度的乙烯聚合乙醇,醇解度超过99%,
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